6x-7+5[3(2x-1)+2]=3x+21

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Solution for 6x-7+5[3(2x-1)+2]=3x+21 equation:


Simplifying
6x + -7 + 5[3(2x + -1) + 2] = 3x + 21

Reorder the terms:
6x + -7 + 5[3(-1 + 2x) + 2] = 3x + 21
6x + -7 + 5[(-1 * 3 + 2x * 3) + 2] = 3x + 21
6x + -7 + 5[(-3 + 6x) + 2] = 3x + 21

Reorder the terms:
6x + -7 + 5[-3 + 2 + 6x] = 3x + 21

Combine like terms: -3 + 2 = -1
6x + -7 + 5[-1 + 6x] = 3x + 21
6x + -7 + [-1 * 5 + 6x * 5] = 3x + 21
6x + -7 + [-5 + 30x] = 3x + 21

Reorder the terms:
-7 + -5 + 6x + 30x = 3x + 21

Combine like terms: -7 + -5 = -12
-12 + 6x + 30x = 3x + 21

Combine like terms: 6x + 30x = 36x
-12 + 36x = 3x + 21

Reorder the terms:
-12 + 36x = 21 + 3x

Solving
-12 + 36x = 21 + 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 + 36x + -3x = 21 + 3x + -3x

Combine like terms: 36x + -3x = 33x
-12 + 33x = 21 + 3x + -3x

Combine like terms: 3x + -3x = 0
-12 + 33x = 21 + 0
-12 + 33x = 21

Add '12' to each side of the equation.
-12 + 12 + 33x = 21 + 12

Combine like terms: -12 + 12 = 0
0 + 33x = 21 + 12
33x = 21 + 12

Combine like terms: 21 + 12 = 33
33x = 33

Divide each side by '33'.
x = 1

Simplifying
x = 1

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