3 years ago

What is the solution to q+(-9)=12

2 answers:

7 0

q−9=12

Step 1: Add 9 to both sides.

q−9+9=12+9

q=21

Answer:

q=21

Volgvan3 years ago

4 0

Q + (-9) = 12
-9 + q = 12
-9 + 9 + q = 12 + 9
9 + 9 = 0
0 + q = 12 + 9
q = 12 + 9
12 + 9 = 21
q = 21
Hope this helps.

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