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

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


Simplifying
[3(x + 7) + -2x] + 3[x + 2(x + -1)] = 0

Reorder the terms:
[3(7 + x) + -2x] + 3[x + 2(x + -1)] = 0
[(7 * 3 + x * 3) + -2x] + 3[x + 2(x + -1)] = 0
[(21 + 3x) + -2x] + 3[x + 2(x + -1)] = 0

Combine like terms: 3x + -2x = 1x
[21 + 1x] + 3[x + 2(x + -1)] = 0

Remove brackets around [21 + 1x]
21 + 1x + 3[x + 2(x + -1)] = 0

Reorder the terms:
21 + 1x + 3[x + 2(-1 + x)] = 0
21 + 1x + 3[x + (-1 * 2 + x * 2)] = 0
21 + 1x + 3[x + (-2 + 2x)] = 0

Reorder the terms:
21 + 1x + 3[-2 + x + 2x] = 0

Combine like terms: x + 2x = 3x
21 + 1x + 3[-2 + 3x] = 0
21 + 1x + [-2 * 3 + 3x * 3] = 0
21 + 1x + [-6 + 9x] = 0

Reorder the terms:
21 + -6 + 1x + 9x = 0

Combine like terms: 21 + -6 = 15
15 + 1x + 9x = 0

Combine like terms: 1x + 9x = 10x
15 + 10x = 0

Solving
15 + 10x = 0

Solving for variable 'x'.

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

Add '-15' to each side of the equation.
15 + -15 + 10x = 0 + -15

Combine like terms: 15 + -15 = 0
0 + 10x = 0 + -15
10x = 0 + -15

Combine like terms: 0 + -15 = -15
10x = -15

Divide each side by '10'.
x = -1.5

Simplifying
x = -1.5

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