3x+12=4x+16

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Solution for 3x+12=4x+16 equation:


Simplifying
3x + 12 = 4x + 16

Reorder the terms:
12 + 3x = 4x + 16

Reorder the terms:
12 + 3x = 16 + 4x

Solving
12 + 3x = 16 + 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.
12 + 3x + -4x = 16 + 4x + -4x

Combine like terms: 3x + -4x = -1x
12 + -1x = 16 + 4x + -4x

Combine like terms: 4x + -4x = 0
12 + -1x = 16 + 0
12 + -1x = 16

Add '-12' to each side of the equation.
12 + -12 + -1x = 16 + -12

Combine like terms: 12 + -12 = 0
0 + -1x = 16 + -12
-1x = 16 + -12

Combine like terms: 16 + -12 = 4
-1x = 4

Divide each side by '-1'.
x = -4

Simplifying
x = -4

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