5x-51=3x-21

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Solution for 5x-51=3x-21 equation:


Simplifying
5x + -51 = 3x + -21

Reorder the terms:
-51 + 5x = 3x + -21

Reorder the terms:
-51 + 5x = -21 + 3x

Solving
-51 + 5x = -21 + 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.
-51 + 5x + -3x = -21 + 3x + -3x

Combine like terms: 5x + -3x = 2x
-51 + 2x = -21 + 3x + -3x

Combine like terms: 3x + -3x = 0
-51 + 2x = -21 + 0
-51 + 2x = -21

Add '51' to each side of the equation.
-51 + 51 + 2x = -21 + 51

Combine like terms: -51 + 51 = 0
0 + 2x = -21 + 51
2x = -21 + 51

Combine like terms: -21 + 51 = 30
2x = 30

Divide each side by '2'.
x = 15

Simplifying
x = 15

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