-8-3x+7x=-28

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Solution for -8-3x+7x=-28 equation: 


Simplifying
-8 + -3x + 7x = -28

Combine like terms: -3x + 7x = 4x
-8 + 4x = -28

Solving
-8 + 4x = -28

Solving for variable 'x'.

Move all terms containing x to the left, all other terms to the right.

Add '8' to each side of the equation.
-8 + 8 + 4x = -28 + 8

Combine like terms: -8 + 8 = 0
0 + 4x = -28 + 8
4x = -28 + 8

Combine like terms: -28 + 8 = -20
4x = -20

Divide each side by '4'.
x = -5

Simplifying
x = -5

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