12=2x+3

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Solution for 12=2x+3 equation:


Simplifying
12 = 2x + 3

Reorder the terms:
12 = 3 + 2x

Solving
12 = 3 + 2x

Solving for variable 'x'.

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

Add '-2x' to each side of the equation.
12 + -2x = 3 + 2x + -2x

Combine like terms: 2x + -2x = 0
12 + -2x = 3 + 0
12 + -2x = 3

Add '-12' to each side of the equation.
12 + -12 + -2x = 3 + -12

Combine like terms: 12 + -12 = 0
0 + -2x = 3 + -12
-2x = 3 + -12

Combine like terms: 3 + -12 = -9
-2x = -9

Divide each side by '-2'.
x = 4.5

Simplifying
x = 4.5

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