3x-4+7x=2x+8

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Solution for 3x-4+7x=2x+8 equation:


Simplifying
3x + -4 + 7x = 2x + 8

Reorder the terms:
-4 + 3x + 7x = 2x + 8

Combine like terms: 3x + 7x = 10x
-4 + 10x = 2x + 8

Reorder the terms:
-4 + 10x = 8 + 2x

Solving
-4 + 10x = 8 + 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.
-4 + 10x + -2x = 8 + 2x + -2x

Combine like terms: 10x + -2x = 8x
-4 + 8x = 8 + 2x + -2x

Combine like terms: 2x + -2x = 0
-4 + 8x = 8 + 0
-4 + 8x = 8

Add '4' to each side of the equation.
-4 + 4 + 8x = 8 + 4

Combine like terms: -4 + 4 = 0
0 + 8x = 8 + 4
8x = 8 + 4

Combine like terms: 8 + 4 = 12
8x = 12

Divide each side by '8'.
x = 1.5

Simplifying
x = 1.5

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