3x+7+5x=12+2x+15

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Solution for 3x+7+5x=12+2x+15 equation:


Simplifying
3x + 7 + 5x = 12 + 2x + 15

Reorder the terms:
7 + 3x + 5x = 12 + 2x + 15

Combine like terms: 3x + 5x = 8x
7 + 8x = 12 + 2x + 15

Reorder the terms:
7 + 8x = 12 + 15 + 2x

Combine like terms: 12 + 15 = 27
7 + 8x = 27 + 2x

Solving
7 + 8x = 27 + 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.
7 + 8x + -2x = 27 + 2x + -2x

Combine like terms: 8x + -2x = 6x
7 + 6x = 27 + 2x + -2x

Combine like terms: 2x + -2x = 0
7 + 6x = 27 + 0
7 + 6x = 27

Add '-7' to each side of the equation.
7 + -7 + 6x = 27 + -7

Combine like terms: 7 + -7 = 0
0 + 6x = 27 + -7
6x = 27 + -7

Combine like terms: 27 + -7 = 20
6x = 20

Divide each side by '6'.
x = 3.333333333

Simplifying
x = 3.333333333

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