Hideki found the solution for the equation below to be r = 66. 6(5 + r) = 96 What mistake did Hideki make in solving the equatio

Question

4 years ago

9

Hideki found the solution for the equation below to be r = 66. 6(5 + r) = 96 What mistake did Hideki make in solving the equatio

n? What is the correct solution?
A. He did not distribute 6 to r; r = 11.
B. He did not divide both sides by 6; r = 16.
C. He did not multiply both sides by 6; r = 571.
D. He did not subtract 5 from both sides; r = 15.

Mathematics

2 answers:

alexgriva [62] · Answer 1 · 2021-12-13T08:35:48+03:00

alexgriva [62]4 years ago

8 0

6(5 + r) = 96
30 + 6r = 96
6r = 96 - 30
6r = 66
r = 66/6
r = 11

A. He did not distribute 6 to r ; r = 11

cricket20 [7] · Answer 2 · 2021-12-13T09:50:52+03:00

cricket20 [7]4 years ago

5 0

Multiplying out 6(5+r) = 96 and solving for r: 30 + 6r = 96

Then 6r = 66, and r = 11.

Answer A is correct.