4-3.5(3a+4)=7

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Solution for 4-3.5(3a+4)=7 equation: 



4-3.5(3a+4)=7

We move all terms to the left:

4-3.5(3a+4)-(7)=0

We add all the numbers together, and all the variables

-3.5(3a+4)-3=0

We multiply parentheses

-10.5a-14-3=0

We add all the numbers together, and all the variables

-10.5a-17=0

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

-10.5a=17

a=17/-10.5

a=-1+2.6/4.2

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