3x+8=12-7x

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Solution for 3x+8=12-7x equation:


Simplifying
3x + 8 = 12 + -7x

Reorder the terms:
8 + 3x = 12 + -7x

Solving
8 + 3x = 12 + -7x

Solving for variable 'x'.

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

Add '7x' to each side of the equation.
8 + 3x + 7x = 12 + -7x + 7x

Combine like terms: 3x + 7x = 10x
8 + 10x = 12 + -7x + 7x

Combine like terms: -7x + 7x = 0
8 + 10x = 12 + 0
8 + 10x = 12

Add '-8' to each side of the equation.
8 + -8 + 10x = 12 + -8

Combine like terms: 8 + -8 = 0
0 + 10x = 12 + -8
10x = 12 + -8

Combine like terms: 12 + -8 = 4
10x = 4

Divide each side by '10'.
x = 0.4

Simplifying
x = 0.4

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