12=5+3*x

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Solution for 12=5+3*x equation:


Simplifying
12 = 5 + 3x

Solving
12 = 5 + 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 + -3x = 5 + 3x + -3x

Combine like terms: 3x + -3x = 0
12 + -3x = 5 + 0
12 + -3x = 5

Add '-12' to each side of the equation.
12 + -12 + -3x = 5 + -12

Combine like terms: 12 + -12 = 0
0 + -3x = 5 + -12
-3x = 5 + -12

Combine like terms: 5 + -12 = -7
-3x = -7

Divide each side by '-3'.
x = 2.333333333

Simplifying
x = 2.333333333

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