3x-[8-3(x-1)]=x+9

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Solution for 3x-[8-3(x-1)]=x+9 equation:


Simplifying
3x + -1[8 + -3(x + -1)] = x + 9

Reorder the terms:
3x + -1[8 + -3(-1 + x)] = x + 9
3x + -1[8 + (-1 * -3 + x * -3)] = x + 9
3x + -1[8 + (3 + -3x)] = x + 9

Combine like terms: 8 + 3 = 11
3x + -1[11 + -3x] = x + 9
3x + [11 * -1 + -3x * -1] = x + 9
3x + [-11 + 3x] = x + 9

Reorder the terms:
-11 + 3x + 3x = x + 9

Combine like terms: 3x + 3x = 6x
-11 + 6x = x + 9

Reorder the terms:
-11 + 6x = 9 + x

Solving
-11 + 6x = 9 + x

Solving for variable 'x'.

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

Add '-1x' to each side of the equation.
-11 + 6x + -1x = 9 + x + -1x

Combine like terms: 6x + -1x = 5x
-11 + 5x = 9 + x + -1x

Combine like terms: x + -1x = 0
-11 + 5x = 9 + 0
-11 + 5x = 9

Add '11' to each side of the equation.
-11 + 11 + 5x = 9 + 11

Combine like terms: -11 + 11 = 0
0 + 5x = 9 + 11
5x = 9 + 11

Combine like terms: 9 + 11 = 20
5x = 20

Divide each side by '5'.
x = 4

Simplifying
x = 4

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