15x-4=7x+20

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


Simplifying
15x + -4 = 7x + 20

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

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

Solving
-4 + 15x = 20 + 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.
-4 + 15x + -7x = 20 + 7x + -7x

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

Combine like terms: 7x + -7x = 0
-4 + 8x = 20 + 0
-4 + 8x = 20

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

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

Combine like terms: 20 + 4 = 24
8x = 24

Divide each side by '8'.
x = 3

Simplifying
x = 3

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