120-10a=150=4

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Solution for 120-10a=150=4 equation: 



120-10a=150=4

We move all terms to the left:

120-10a-(150)=0

We add all the numbers together, and all the variables

-10a-30=0

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

-10a=30

a=30/-10

a=-3

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