103=3(7-9x)-4(1+4x)

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Solution for 103=3(7-9x)-4(1+4x) equation: 



103=3(7-9x)-4(1+4x)

We move all terms to the left:

103-(3(7-9x)-4(1+4x))=0

We add all the numbers together, and all the variables

-(3(-9x+7)-4(4x+1))+103=0



We calculate terms in parentheses: -(3(-9x+7)-4(4x+1)), so:

3(-9x+7)-4(4x+1)

We multiply parentheses

-27x-16x+21-4

We add all the numbers together, and all the variables

-43x+17

Back to the equation:

-(-43x+17)



We get rid of parentheses

43x-17+103=0

We add all the numbers together, and all the variables

43x+86=0

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

43x=-86

x=-86/43

x=-2

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