Answer two questions about Equations $${A}$$ and $${B}$$ :
A. $$5 x=20$$
B. $$x=4$$

How can we get Equation B from Equation A?




<div id="displayOption0" class="markdown-body editormd-html-preview"><textarea>Multiply/divide both sides by the same non-zero constant

</textarea>Multiply/divide both sides by the same non-zero constant
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<div id="displayOption1" class="markdown-body editormd-html-preview"><textarea> Multiply/divide both sides by the same variable expression

</textarea> Multiply/divide both sides by the same variable expression
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<div id="displayOption2" class="markdown-body editormd-html-preview"><textarea> Add/subtract the same quantity to/from both sides </textarea> Add/subtract the same quantity to/from both sides 
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<div id="displayOption3" class="markdown-body editormd-html-preview"><textarea>Add/subtract a quantity to/from only one side</textarea>Add/subtract a quantity to/from only one side
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<div id="id_cont_display" class="markdown-body editormd-html-preview"><textarea>Answer two questions about Equations $${A}$$ and $${B}$$ :
A. $$5 x=20$$
B. $$x=4$$

How can we get Equation B from Equation A?


</textarea>Answer two questions about Equations <math><semantics><mrow><mrow><mi>A</mi></mrow></mrow><annotation encoding="application/x-tex">{A}</annotation></semantics></math>A and <math><semantics><mrow><mrow><mi>B</mi></mrow></mrow><annotation encoding="application/x-tex">{B}</annotation></semantics></math>B : A. <math><semantics><mrow><mn>5</mn><mi>x</mi><mo>=</mo><mn>2</mn><mn>0</mn></mrow><annotation encoding="application/x-tex">5 x=20</annotation></semantics></math>5x=20 B. <math><semantics><mrow><mi>x</mi><mo>=</mo><mn>4</mn></mrow><annotation encoding="application/x-tex">x=4</annotation></semantics></math>x=4
How can we get Equation B from Equation A?
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<div id="id_solution_display" class="markdown-body editormd-html-preview"><textarea>Given that,

$$A. 5 x=20$$ 

If we divide by 5 each side, we get.

$$\frac{5 x}{5}=\frac{20}{5}$$ 

or, $$x=4$$ [which is $$B$$ ]

$$\therefore$$ Divide both sides by the same non zero constant is the correct option.

</textarea>Given that,
<math><semantics><mrow><mi>A</mi><mi mathvariant="normal">.</mi><mn>5</mn><mi>x</mi><mo>=</mo><mn>2</mn><mn>0</mn></mrow><annotation encoding="application/x-tex">A. 5 x=20</annotation></semantics></math>A.5x=20 
If we divide by 5 each side, we get.
<math><semantics><mrow><mfrac><mrow><mn>5</mn><mi>x</mi></mrow><mrow><mn>5</mn></mrow></mfrac><mo>=</mo><mfrac><mrow><mn>2</mn><mn>0</mn></mrow><mrow><mn>5</mn></mrow></mfrac></mrow><annotation encoding="application/x-tex">\frac{5 x}{5}=\frac{20}{5}</annotation></semantics></math>​5​​5x​​=​5​​20​​ 
or, <math><semantics><mrow><mi>x</mi><mo>=</mo><mn>4</mn></mrow><annotation encoding="application/x-tex">x=4</annotation></semantics></math>x=4 [which is <math><semantics><mrow><mi>B</mi></mrow><annotation encoding="application/x-tex">B</annotation></semantics></math>B ]
<math><semantics><mrow><mo>∴</mo></mrow><annotation encoding="application/x-tex">\therefore</annotation></semantics></math>∴ Divide both sides by the same non zero constant is the correct option.
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