13=-7(1+x)-3(5-4x)

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Solution for 13=-7(1+x)-3(5-4x) equation:


13=-7(1+x)-3(5-4x)

We simplify the equation to the form, which is simple to understand 
13=-7(1+x)-3(5-4x)

Reorder the terms in parentheses
13=+(-7-7x)-3*(5-4x)

Remove unnecessary parentheses
+13=-7-7x-3+*(+5-4x+)

Reorder the terms in parentheses
13=-7-7x+(-15+12x)

Remove unnecessary parentheses
+13=-7-7x-15+12x

We move all terms containing x to the left and all other terms to the right. 
+7x-12x=-7-15-13

We simplify left and right side of the equation. 
-5x=-35

We divide both sides of the equation by -5 to get x. 
x=7

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