5+-7x=6x-21x

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Solution for 5+-7x=6x-21x equation:


Simplifying
5 + -7x = 6x + -21x

Combine like terms: 6x + -21x = -15x
5 + -7x = -15x

Solving
5 + -7x = -15x

Solving for variable 'x'.

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

Add '15x' to each side of the equation.
5 + -7x + 15x = -15x + 15x

Combine like terms: -7x + 15x = 8x
5 + 8x = -15x + 15x

Combine like terms: -15x + 15x = 0
5 + 8x = 0

Add '-5' to each side of the equation.
5 + -5 + 8x = 0 + -5

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

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

Divide each side by '8'.
x = -0.625

Simplifying
x = -0.625

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