-84=3x+4x-7

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Solution for -84=3x+4x-7 equation:


-84=3x+4x-7

We simplify the equation to the form, which is simple to understand 
-84=3x+4x-7

We move all terms containing x to the left and all other terms to the right. 
-3x-4x=-7+84

We simplify left and right side of the equation. 
-7x=+77

We divide both sides of the equation by -7 to get x. 
x=-11

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