15x+4-7x=8x+20

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Solution for 15x+4-7x=8x+20 equation:


Simplifying
15x + 4 + -7x = 8x + 20

Reorder the terms:
4 + 15x + -7x = 8x + 20

Combine like terms: 15x + -7x = 8x
4 + 8x = 8x + 20

Reorder the terms:
4 + 8x = 20 + 8x

Add '-8x' to each side of the equation.
4 + 8x + -8x = 20 + 8x + -8x

Combine like terms: 8x + -8x = 0
4 + 0 = 20 + 8x + -8x
4 = 20 + 8x + -8x

Combine like terms: 8x + -8x = 0
4 = 20 + 0
4 = 20

Solving
4 = 20

Couldn't find a variable to solve for.

This equation is invalid, the left and right sides are not equal, therefore there is no solution.

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