3x+4-x+8=3(2x-1)+8

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Solution for 3x+4-x+8=3(2x-1)+8 equation: 


Simplifying
3x + 4 + -1x + 8 = 3(2x + -1) + 8

Reorder the terms:
4 + 8 + 3x + -1x = 3(2x + -1) + 8

Combine like terms: 4 + 8 = 12
12 + 3x + -1x = 3(2x + -1) + 8

Combine like terms: 3x + -1x = 2x
12 + 2x = 3(2x + -1) + 8

Reorder the terms:
12 + 2x = 3(-1 + 2x) + 8
12 + 2x = (-1 * 3 + 2x * 3) + 8
12 + 2x = (-3 + 6x) + 8

Reorder the terms:
12 + 2x = -3 + 8 + 6x

Combine like terms: -3 + 8 = 5
12 + 2x = 5 + 6x

Solving
12 + 2x = 5 + 6x

Solving for variable 'x'.

Move all terms containing x to the left, all other terms to the right.

Add '-6x' to each side of the equation.
12 + 2x + -6x = 5 + 6x + -6x

Combine like terms: 2x + -6x = -4x
12 + -4x = 5 + 6x + -6x

Combine like terms: 6x + -6x = 0
12 + -4x = 5 + 0
12 + -4x = 5

Add '-12' to each side of the equation.
12 + -12 + -4x = 5 + -12

Combine like terms: 12 + -12 = 0
0 + -4x = 5 + -12
-4x = 5 + -12

Combine like terms: 5 + -12 = -7
-4x = -7

Divide each side by '-4'.
x = 1.75

Simplifying
x = 1.75

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