3+5=12+4x

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Solution for 3+5=12+4x equation:


Simplifying
3 + 5 = 12 + 4x

Combine like terms: 3 + 5 = 8
8 = 12 + 4x

Solving
8 = 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.
8 + -4x = 12 + 4x + -4x

Combine like terms: 4x + -4x = 0
8 + -4x = 12 + 0
8 + -4x = 12

Add '-8' to each side of the equation.
8 + -8 + -4x = 12 + -8

Combine like terms: 8 + -8 = 0
0 + -4x = 12 + -8
-4x = 12 + -8

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

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

Simplifying
x = -1

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