Find X if f(x)=2x + 7 and f(x)= -1 A. -2 = x B. -4 = x C. 1 = x D. 0 = x

asked May 25, 2019 106k views

2 votes

Find X if f(x)=2x + 7 and f(x)= -1

A. -2 = x

B. -4 = x

C. 1 = x

D. 0 = x

5.2k points

Please log in or register to add a comment.

2 votes

Answer:

B. -4 = x

Explanation:

f(x) = 2x+7

-1 = 2x+7

solve for x

subtract 7 from each side

-1-7 = 2x +7 -7

-8 = 2x

divide by 2

-8/2 = 2x/2

-4 = x

Tomole answered May 29, 2019

6.2k points

Welcome to QAmmunity.org, where you can ask questions and receive answers from other members of our community.

6.6m questions

8.7m answers