7-4x+-20-7=7+8-4x-16

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Solution for 7-4x+-20-7=7+8-4x-16 equation: 


Simplifying
7 + -4x + -20 + -7 = 7 + 8 + -4x + -16

Reorder the terms:
7 + -20 + -7 + -4x = 7 + 8 + -4x + -16

Combine like terms: 7 + -20 = -13
-13 + -7 + -4x = 7 + 8 + -4x + -16

Combine like terms: -13 + -7 = -20
-20 + -4x = 7 + 8 + -4x + -16

Reorder the terms:
-20 + -4x = 7 + 8 + -16 + -4x

Combine like terms: 7 + 8 = 15
-20 + -4x = 15 + -16 + -4x

Combine like terms: 15 + -16 = -1
-20 + -4x = -1 + -4x

Add '4x' to each side of the equation.
-20 + -4x + 4x = -1 + -4x + 4x

Combine like terms: -4x + 4x = 0
-20 + 0 = -1 + -4x + 4x
-20 = -1 + -4x + 4x

Combine like terms: -4x + 4x = 0
-20 = -1 + 0
-20 = -1

Solving
-20 = -1

Couldn't find a variable to solve for.

This equation is invalid, the left and right sides are not equal, therefore there is no solution.

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