103-3x=4x+12

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Solution for 103-3x=4x+12 equation:


Simplifying
103 + -3x = 4x + 12

Reorder the terms:
103 + -3x = 12 + 4x

Solving
103 + -3x = 12 + 4x

Solving for variable 'x'.

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

Add '-4x' to each side of the equation.
103 + -3x + -4x = 12 + 4x + -4x

Combine like terms: -3x + -4x = -7x
103 + -7x = 12 + 4x + -4x

Combine like terms: 4x + -4x = 0
103 + -7x = 12 + 0
103 + -7x = 12

Add '-103' to each side of the equation.
103 + -103 + -7x = 12 + -103

Combine like terms: 103 + -103 = 0
0 + -7x = 12 + -103
-7x = 12 + -103

Combine like terms: 12 + -103 = -91
-7x = -91

Divide each side by '-7'.
x = 13

Simplifying
x = 13

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