Answer :
Let's call the number ' Q '.
The question says that (4Q) - (-10) = -18
Add -10 to each side:
4Q = -28
Divide each side by 4 :
Q = -7
The question says that (4Q) - (-10) = -18
Add -10 to each side:
4Q = -28
Divide each side by 4 :
Q = -7