Asked by jill

12-(x+3)=10
first step 12-4x=10
-4x=-2

what is wrong with this step?
Answered by Ms. Sue
12-(x+3)=10

12 - 3 - x = 10

9 - x = 10

-x = 10 - 9

x = -1

Answered by jill
Thank you
can you check this problem
15=2(q+4)+3
15=2q+8+3
15=2q+11
4=2q
q=2

thank you so much






Answered by Ms. Sue
You're welcome.

15=2(q+4)+3

15 = 2q + 8 + 3
15 - 11 = 2q
4 = 2q
2 = q

You're right.