6x+21=2x+57

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Solution for 6x+21=2x+57 equation:


Simplifying
6x + 21 = 2x + 57

Reorder the terms:
21 + 6x = 2x + 57

Reorder the terms:
21 + 6x = 57 + 2x

Solving
21 + 6x = 57 + 2x

Solving for variable 'x'.

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

Add '-2x' to each side of the equation.
21 + 6x + -2x = 57 + 2x + -2x

Combine like terms: 6x + -2x = 4x
21 + 4x = 57 + 2x + -2x

Combine like terms: 2x + -2x = 0
21 + 4x = 57 + 0
21 + 4x = 57

Add '-21' to each side of the equation.
21 + -21 + 4x = 57 + -21

Combine like terms: 21 + -21 = 0
0 + 4x = 57 + -21
4x = 57 + -21

Combine like terms: 57 + -21 = 36
4x = 36

Divide each side by '4'.
x = 9

Simplifying
x = 9

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