15x-20=7x

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Solution for 15x-20=7x equation:


Simplifying
15x + -20 = 7x

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

Solving
-20 + 15x = 7x

Solving for variable 'x'.

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

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

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

Combine like terms: 7x + -7x = 0
-20 + 8x = 0

Add '20' to each side of the equation.
-20 + 20 + 8x = 0 + 20

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

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

Divide each side by '8'.
x = 2.5

Simplifying
x = 2.5

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