-3[7-3(x+6)]+x=9

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Solution for -3[7-3(x+6)]+x=9 equation:


Simplifying
-3[7 + -3(x + 6)] + x = 9

Reorder the terms:
-3[7 + -3(6 + x)] + x = 9
-3[7 + (6 * -3 + x * -3)] + x = 9
-3[7 + (-18 + -3x)] + x = 9

Combine like terms: 7 + -18 = -11
-3[-11 + -3x] + x = 9
[-11 * -3 + -3x * -3] + x = 9
[33 + 9x] + x = 9

Combine like terms: 9x + x = 10x
33 + 10x = 9

Solving
33 + 10x = 9

Solving for variable 'x'.

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

Add '-33' to each side of the equation.
33 + -33 + 10x = 9 + -33

Combine like terms: 33 + -33 = 0
0 + 10x = 9 + -33
10x = 9 + -33

Combine like terms: 9 + -33 = -24
10x = -24

Divide each side by '10'.
x = -2.4

Simplifying
x = -2.4

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