Question

Tues. 2.15 Question: Mr. Becker solved the

following equation: 10x = 3x + 21. He got an an
answer of X=2. Did Mr. Becker get the answer
correct? If not, what did he do wrong.

Answer 1

YES X=3

Explanation:

10x=3x+21

-3x -3x

7x=21

________ . *DIVIDE BY 7 on each side

7 7

X=3