Katieperezzzz Katieperezzzz

21-01-2016
Mathematics

contestada

1. 5x + 2(x +6) simplify each expression

A. 7x + 6
B.7x2 + 12
C.7x + 12
D.7x (x + 6

2. -3m + 3(m + 6)

A. 6
B. -6m + 6
C.6m + 18
D.18

Respuesta :

Billymkhoi Billymkhoi

21-01-2016

1. 5x+ 2(x+6)
= 5x+ 2x+ 2*6 (distributive property)
= 5x+ 2x+ 12
= (5x+ 2x)+ 12 (combine like terms)
= 7x+ 12

The correct answer is C. 7x+12~

2. -3m + 3(m + 6)
= -3m+ 3m+ 3*6
= -3m+ 3m+ 18
= (-3m+ 3m)+ 18
= 18

The correct answer is D. 18~

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