12x-15-7x+9=3x+5

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Solution for 12x-15-7x+9=3x+5 equation:


Simplifying
12x + -15 + -7x + 9 = 3x + 5

Reorder the terms:
-15 + 9 + 12x + -7x = 3x + 5

Combine like terms: -15 + 9 = -6
-6 + 12x + -7x = 3x + 5

Combine like terms: 12x + -7x = 5x
-6 + 5x = 3x + 5

Reorder the terms:
-6 + 5x = 5 + 3x

Solving
-6 + 5x = 5 + 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.
-6 + 5x + -3x = 5 + 3x + -3x

Combine like terms: 5x + -3x = 2x
-6 + 2x = 5 + 3x + -3x

Combine like terms: 3x + -3x = 0
-6 + 2x = 5 + 0
-6 + 2x = 5

Add '6' to each side of the equation.
-6 + 6 + 2x = 5 + 6

Combine like terms: -6 + 6 = 0
0 + 2x = 5 + 6
2x = 5 + 6

Combine like terms: 5 + 6 = 11
2x = 11

Divide each side by '2'.
x = 5.5

Simplifying
x = 5.5

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