7x-29-21x=3-(12+12x)

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Solution for 7x-29-21x=3-(12+12x) equation:


Simplifying
7x + -29 + -21x = 3 + -1(12 + 12x)

Reorder the terms:
-29 + 7x + -21x = 3 + -1(12 + 12x)

Combine like terms: 7x + -21x = -14x
-29 + -14x = 3 + -1(12 + 12x)
-29 + -14x = 3 + (12 * -1 + 12x * -1)
-29 + -14x = 3 + (-12 + -12x)

Combine like terms: 3 + -12 = -9
-29 + -14x = -9 + -12x

Solving
-29 + -14x = -9 + -12x

Solving for variable 'x'.

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

Add '12x' to each side of the equation.
-29 + -14x + 12x = -9 + -12x + 12x

Combine like terms: -14x + 12x = -2x
-29 + -2x = -9 + -12x + 12x

Combine like terms: -12x + 12x = 0
-29 + -2x = -9 + 0
-29 + -2x = -9

Add '29' to each side of the equation.
-29 + 29 + -2x = -9 + 29

Combine like terms: -29 + 29 = 0
0 + -2x = -9 + 29
-2x = -9 + 29

Combine like terms: -9 + 29 = 20
-2x = 20

Divide each side by '-2'.
x = -10

Simplifying
x = -10

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