7=[3x+9]

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Solution for 7=[3x+9] equation:


Simplifying
7 = [3x + 9]

Reorder the terms:
7 = [9 + 3x]

Remove brackets around [9 + 3x]
7 = 9 + 3x

Solving
7 = 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.
7 + -3x = 9 + 3x + -3x

Combine like terms: 3x + -3x = 0
7 + -3x = 9 + 0
7 + -3x = 9

Add '-7' to each side of the equation.
7 + -7 + -3x = 9 + -7

Combine like terms: 7 + -7 = 0
0 + -3x = 9 + -7
-3x = 9 + -7

Combine like terms: 9 + -7 = 2
-3x = 2

Divide each side by '-3'.
x = -0.6666666667

Simplifying
x = -0.6666666667

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