12+4x=15+3x

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Solution for 12+4x=15+3x equation: 


Simplifying
12 + 4x = 15 + 3x

Solving
12 + 4x = 15 + 3x

Solving for variable 'x'.

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

Add '-3x' to each side of the equation.
12 + 4x + -3x = 15 + 3x + -3x

Combine like terms: 4x + -3x = 1x
12 + 1x = 15 + 3x + -3x

Combine like terms: 3x + -3x = 0
12 + 1x = 15 + 0
12 + 1x = 15

Add '-12' to each side of the equation.
12 + -12 + 1x = 15 + -12

Combine like terms: 12 + -12 = 0
0 + 1x = 15 + -12
1x = 15 + -12

Combine like terms: 15 + -12 = 3
1x = 3

Divide each side by '1'.
x = 3

Simplifying
x = 3

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