-100-7x=8x+20

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Solution for -100-7x=8x+20 equation:


Simplifying
-100 + -7x = 8x + 20

Reorder the terms:
-100 + -7x = 20 + 8x

Solving
-100 + -7x = 20 + 8x

Solving for variable 'x'.

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

Add '-8x' to each side of the equation.
-100 + -7x + -8x = 20 + 8x + -8x

Combine like terms: -7x + -8x = -15x
-100 + -15x = 20 + 8x + -8x

Combine like terms: 8x + -8x = 0
-100 + -15x = 20 + 0
-100 + -15x = 20

Add '100' to each side of the equation.
-100 + 100 + -15x = 20 + 100

Combine like terms: -100 + 100 = 0
0 + -15x = 20 + 100
-15x = 20 + 100

Combine like terms: 20 + 100 = 120
-15x = 120

Divide each side by '-15'.
x = -8

Simplifying
x = -8

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