7x-28=4x+8

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Solution for 7x-28=4x+8 equation:


Simplifying
7x + -28 = 4x + 8

Reorder the terms:
-28 + 7x = 4x + 8

Reorder the terms:
-28 + 7x = 8 + 4x

Solving
-28 + 7x = 8 + 4x

Solving for variable 'x'.

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

Add '-4x' to each side of the equation.
-28 + 7x + -4x = 8 + 4x + -4x

Combine like terms: 7x + -4x = 3x
-28 + 3x = 8 + 4x + -4x

Combine like terms: 4x + -4x = 0
-28 + 3x = 8 + 0
-28 + 3x = 8

Add '28' to each side of the equation.
-28 + 28 + 3x = 8 + 28

Combine like terms: -28 + 28 = 0
0 + 3x = 8 + 28
3x = 8 + 28

Combine like terms: 8 + 28 = 36
3x = 36

Divide each side by '3'.
x = 12

Simplifying
x = 12

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