15x+20=6x-7

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Solution for 15x+20=6x-7 equation:


Simplifying
15x + 20 = 6x + -7

Reorder the terms:
20 + 15x = 6x + -7

Reorder the terms:
20 + 15x = -7 + 6x

Solving
20 + 15x = -7 + 6x

Solving for variable 'x'.

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

Add '-6x' to each side of the equation.
20 + 15x + -6x = -7 + 6x + -6x

Combine like terms: 15x + -6x = 9x
20 + 9x = -7 + 6x + -6x

Combine like terms: 6x + -6x = 0
20 + 9x = -7 + 0
20 + 9x = -7

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

Combine like terms: 20 + -20 = 0
0 + 9x = -7 + -20
9x = -7 + -20

Combine like terms: -7 + -20 = -27
9x = -27

Divide each side by '9'.
x = -3

Simplifying
x = -3

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