12=3[x+3]

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Solution for 12=3[x+3] equation:


Simplifying
12 = 3[x + 3]

Reorder the terms:
12 = 3[3 + x]
12 = [3 * 3 + x * 3]
12 = [9 + 3x]

Solving
12 = 9 + 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 = 9 + 3x + -3x

Combine like terms: 3x + -3x = 0
12 + -3x = 9 + 0
12 + -3x = 9

Add '-12' to each side of the equation.
12 + -12 + -3x = 9 + -12

Combine like terms: 12 + -12 = 0
0 + -3x = 9 + -12
-3x = 9 + -12

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

Divide each side by '-3'.
x = 1

Simplifying
x = 1

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