a*3=(-30)

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Solution for a*3=(-30) equation: 



a*3=(-30)

We move all terms to the left:

a*3-((-30))=0

We add all the numbers together, and all the variables

a*3+30=0

Wy multiply elements

3a+30=0

We move all terms containing a to the left, all other terms to the right

3a=-30

a=-30/3

a=-10

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