x+5+7=3x

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Solution for x+5+7=3x equation:


Simplifying
x + 5 + 7 = 3x

Reorder the terms:
5 + 7 + x = 3x

Combine like terms: 5 + 7 = 12
12 + x = 3x

Solving
12 + x = 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.
12 + x + -3x = 3x + -3x

Combine like terms: x + -3x = -2x
12 + -2x = 3x + -3x

Combine like terms: 3x + -3x = 0
12 + -2x = 0

Add '-12' to each side of the equation.
12 + -12 + -2x = 0 + -12

Combine like terms: 12 + -12 = 0
0 + -2x = 0 + -12
-2x = 0 + -12

Combine like terms: 0 + -12 = -12
-2x = -12

Divide each side by '-2'.
x = 6

Simplifying
x = 6

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