15-2x-8-6x=-21x+4-10

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Solution for 15-2x-8-6x=-21x+4-10 equation:


Simplifying
15 + -2x + -8 + -6x = -21x + 4 + -10

Reorder the terms:
15 + -8 + -2x + -6x = -21x + 4 + -10

Combine like terms: 15 + -8 = 7
7 + -2x + -6x = -21x + 4 + -10

Combine like terms: -2x + -6x = -8x
7 + -8x = -21x + 4 + -10

Reorder the terms:
7 + -8x = 4 + -10 + -21x

Combine like terms: 4 + -10 = -6
7 + -8x = -6 + -21x

Solving
7 + -8x = -6 + -21x

Solving for variable 'x'.

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

Add '21x' to each side of the equation.
7 + -8x + 21x = -6 + -21x + 21x

Combine like terms: -8x + 21x = 13x
7 + 13x = -6 + -21x + 21x

Combine like terms: -21x + 21x = 0
7 + 13x = -6 + 0
7 + 13x = -6

Add '-7' to each side of the equation.
7 + -7 + 13x = -6 + -7

Combine like terms: 7 + -7 = 0
0 + 13x = -6 + -7
13x = -6 + -7

Combine like terms: -6 + -7 = -13
13x = -13

Divide each side by '13'.
x = -1

Simplifying
x = -1

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