Asked by Sara

Can you please explain how to do this equation, thanks

x+9+12 = -3
Answered by Ms. Sue
x+9+12 = -3

We need to get the known numbers on one side of the equation. To do this we have to subtract the known numbers from both sides.

x + 9 + 12 - 9 - 12 = -3 -9 -12
x = -24

Check it by substituting -24 for x.



Answered by Sara
Thank you Ms. Sue :-)
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