2x-9=-7+20

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


Simplifying
2x + -9 = -7 + 20

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

Combine like terms: -7 + 20 = 13
-9 + 2x = 13

Solving
-9 + 2x = 13

Solving for variable 'x'.

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

Add '9' to each side of the equation.
-9 + 9 + 2x = 13 + 9

Combine like terms: -9 + 9 = 0
0 + 2x = 13 + 9
2x = 13 + 9

Combine like terms: 13 + 9 = 22
2x = 22

Divide each side by '2'.
x = 11

Simplifying
x = 11

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