Question

Solve: 7(2r – 5) = 4r + 5(2r + 3)

a. -7
b. -8
c. no solution
d. infinite solutions

Answer 1

C) No Solution.

Explanation:

7(2r-5)=4r+5(2r+3)

14r-35=4r+10r+15

14r-35=14r+15

14r-14r-35=15

-35=15

no solution.

Answer 2

no solutions

Explanation:

7(2r – 5) = 4r + 5(2r + 3)

Distribute

14r -35 = 4r+10r+15

Combine like ters

14r-35 = 14r+15

Subtract 14r from each side

14r-35 -14r = 14r+15-14r

-35 =15

This is not a true statement so it has no solutions