5(2a+5)-3(4a-3)=90

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Solution for 5(2a+5)-3(4a-3)=90 equation: 



5(2a+5)-3(4a-3)=90

We move all terms to the left:

5(2a+5)-3(4a-3)-(90)=0

We multiply parentheses

10a-12a+25+9-90=0

We add all the numbers together, and all the variables

-2a-56=0

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

-2a=56

a=56/-2

a=-28

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