7x+13=2x-8

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Solution for 7x+13=2x-8 equation:


Simplifying
7x + 13 = 2x + -8

Reorder the terms:
13 + 7x = 2x + -8

Reorder the terms:
13 + 7x = -8 + 2x

Solving
13 + 7x = -8 + 2x

Solving for variable 'x'.

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

Add '-2x' to each side of the equation.
13 + 7x + -2x = -8 + 2x + -2x

Combine like terms: 7x + -2x = 5x
13 + 5x = -8 + 2x + -2x

Combine like terms: 2x + -2x = 0
13 + 5x = -8 + 0
13 + 5x = -8

Add '-13' to each side of the equation.
13 + -13 + 5x = -8 + -13

Combine like terms: 13 + -13 = 0
0 + 5x = -8 + -13
5x = -8 + -13

Combine like terms: -8 + -13 = -21
5x = -21

Divide each side by '5'.
x = -4.2

Simplifying
x = -4.2

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