2x-2-7x+9=20

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Solution for 2x-2-7x+9=20 equation:


Simplifying
2x + -2 + -7x + 9 = 20

Reorder the terms:
-2 + 9 + 2x + -7x = 20

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

Combine like terms: 2x + -7x = -5x
7 + -5x = 20

Solving
7 + -5x = 20

Solving for variable 'x'.

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

Add '-7' to each side of the equation.
7 + -7 + -5x = 20 + -7

Combine like terms: 7 + -7 = 0
0 + -5x = 20 + -7
-5x = 20 + -7

Combine like terms: 20 + -7 = 13
-5x = 13

Divide each side by '-5'.
x = -2.6

Simplifying
x = -2.6

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