-20=-20+9x

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Solution for -20=-20+9x equation:


Simplifying
-20 = -20 + 9x

Add '20' to each side of the equation.
-20 + 20 = -20 + 20 + 9x

Combine like terms: -20 + 20 = 0
0 = -20 + 20 + 9x

Combine like terms: -20 + 20 = 0
0 = 0 + 9x
0 = 9x

Solving
0 = 9x

Solving for variable 'x'.

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

Add '-9x' to each side of the equation.
0 + -9x = 9x + -9x
Remove the zero:
-9x = 9x + -9x

Combine like terms: 9x + -9x = 0
-9x = 0

Divide each side by '-9'.
x = 0

Simplifying
x = 0

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