180-[(2x+13)+(x+7)]=180-(4x+2)

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Solution for 180-[(2x+13)+(x+7)]=180-(4x+2) equation:


Simplifying
180 + -1[(2x + 13) + (x + 7)] = 180 + -1(4x + 2)

Reorder the terms:
180 + -1[(13 + 2x) + (x + 7)] = 180 + -1(4x + 2)

Remove parenthesis around (13 + 2x)
180 + -1[13 + 2x + (x + 7)] = 180 + -1(4x + 2)

Reorder the terms:
180 + -1[13 + 2x + (7 + x)] = 180 + -1(4x + 2)

Remove parenthesis around (7 + x)
180 + -1[13 + 2x + 7 + x] = 180 + -1(4x + 2)

Reorder the terms:
180 + -1[13 + 7 + 2x + x] = 180 + -1(4x + 2)

Combine like terms: 13 + 7 = 20
180 + -1[20 + 2x + x] = 180 + -1(4x + 2)

Combine like terms: 2x + x = 3x
180 + -1[20 + 3x] = 180 + -1(4x + 2)
180 + [20 * -1 + 3x * -1] = 180 + -1(4x + 2)
180 + [-20 + -3x] = 180 + -1(4x + 2)

Combine like terms: 180 + -20 = 160
160 + -3x = 180 + -1(4x + 2)

Reorder the terms:
160 + -3x = 180 + -1(2 + 4x)
160 + -3x = 180 + (2 * -1 + 4x * -1)
160 + -3x = 180 + (-2 + -4x)

Combine like terms: 180 + -2 = 178
160 + -3x = 178 + -4x

Solving
160 + -3x = 178 + -4x

Solving for variable 'x'.

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

Add '4x' to each side of the equation.
160 + -3x + 4x = 178 + -4x + 4x

Combine like terms: -3x + 4x = 1x
160 + 1x = 178 + -4x + 4x

Combine like terms: -4x + 4x = 0
160 + 1x = 178 + 0
160 + 1x = 178

Add '-160' to each side of the equation.
160 + -160 + 1x = 178 + -160

Combine like terms: 160 + -160 = 0
0 + 1x = 178 + -160
1x = 178 + -160

Combine like terms: 178 + -160 = 18
1x = 18

Divide each side by '1'.
x = 18

Simplifying
x = 18

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