Prephub - Combine the like terms to create an equivalent expression 2 r14 r7

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Question

Difficulty Level:

Easy

MCQ

Combine the like terms to create an equivalent expression: $2 r+1+(-4 r)+7$

Select all that apply :

$- 2 r+8$

$2 r+8$

$2 r-8$

$-2 r-8$

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