3x-42=2x+9

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Solution for 3x-42=2x+9 equation:


Simplifying
3x + -42 = 2x + 9

Reorder the terms:
-42 + 3x = 2x + 9

Reorder the terms:
-42 + 3x = 9 + 2x

Solving
-42 + 3x = 9 + 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.
-42 + 3x + -2x = 9 + 2x + -2x

Combine like terms: 3x + -2x = 1x
-42 + 1x = 9 + 2x + -2x

Combine like terms: 2x + -2x = 0
-42 + 1x = 9 + 0
-42 + 1x = 9

Add '42' to each side of the equation.
-42 + 42 + 1x = 9 + 42

Combine like terms: -42 + 42 = 0
0 + 1x = 9 + 42
1x = 9 + 42

Combine like terms: 9 + 42 = 51
1x = 51

Divide each side by '1'.
x = 51

Simplifying
x = 51

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