4x-21=56-3x

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Solution for 4x-21=56-3x equation:


Simplifying
4x + -21 = 56 + -3x

Reorder the terms:
-21 + 4x = 56 + -3x

Solving
-21 + 4x = 56 + -3x

Solving for variable 'x'.

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

Add '3x' to each side of the equation.
-21 + 4x + 3x = 56 + -3x + 3x

Combine like terms: 4x + 3x = 7x
-21 + 7x = 56 + -3x + 3x

Combine like terms: -3x + 3x = 0
-21 + 7x = 56 + 0
-21 + 7x = 56

Add '21' to each side of the equation.
-21 + 21 + 7x = 56 + 21

Combine like terms: -21 + 21 = 0
0 + 7x = 56 + 21
7x = 56 + 21

Combine like terms: 56 + 21 = 77
7x = 77

Divide each side by '7'.
x = 11

Simplifying
x = 11

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