100-4(x-3)-3x=7

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Solution for 100-4(x-3)-3x=7 equation: 



100-4(x-3)-3x=7

We move all terms to the left:

100-4(x-3)-3x-(7)=0

We add all the numbers together, and all the variables

-3x-4(x-3)+93=0

We multiply parentheses

-3x-4x+12+93=0

We add all the numbers together, and all the variables

-7x+105=0

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

-7x=-105

x=-105/-7

x=+15

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