Question

Pleazzzzzzzzzzzzzz HELP!!!!

Identify the mistake that was made simplifying the expression. Then correctly simplify the expression.

5(a+7) - 3(2a+3) - 3a
5a + 35 - 6a + 9 - 3a
(5a - 6a - 3a) + (35 + 9)
-4a + 44

Answer 1

Explanation:

The mistake is in 2nd step . There should be - 9

Correct :

5a + 35 - 6a - 9 - 3a

-4a + 26

Answer 2

The simplifying of the expression  will be -12a+102