7x+9-3x+1=12

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Solution for 7x+9-3x+1=12 equation:


Simplifying
7x + 9 + -3x + 1 = 12

Reorder the terms:
9 + 1 + 7x + -3x = 12

Combine like terms: 9 + 1 = 10
10 + 7x + -3x = 12

Combine like terms: 7x + -3x = 4x
10 + 4x = 12

Solving
10 + 4x = 12

Solving for variable 'x'.

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

Add '-10' to each side of the equation.
10 + -10 + 4x = 12 + -10

Combine like terms: 10 + -10 = 0
0 + 4x = 12 + -10
4x = 12 + -10

Combine like terms: 12 + -10 = 2
4x = 2

Divide each side by '4'.
x = 0.5

Simplifying
x = 0.5

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