9x=7x-20

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Solution for 9x=7x-20 equation: 


Simplifying
9x = 7x + -20

Reorder the terms:
9x = -20 + 7x

Solving
9x = -20 + 7x

Solving for variable 'x'.

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

Add '-7x' to each side of the equation.
9x + -7x = -20 + 7x + -7x

Combine like terms: 9x + -7x = 2x
2x = -20 + 7x + -7x

Combine like terms: 7x + -7x = 0
2x = -20 + 0
2x = -20

Divide each side by '2'.
x = -10

Simplifying
x = -10

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