12x+9-8x=17-8x+4

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Solution for 12x+9-8x=17-8x+4 equation:


Simplifying
12x + 9 + -8x = 17 + -8x + 4

Reorder the terms:
9 + 12x + -8x = 17 + -8x + 4

Combine like terms: 12x + -8x = 4x
9 + 4x = 17 + -8x + 4

Reorder the terms:
9 + 4x = 17 + 4 + -8x

Combine like terms: 17 + 4 = 21
9 + 4x = 21 + -8x

Solving
9 + 4x = 21 + -8x

Solving for variable 'x'.

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

Add '8x' to each side of the equation.
9 + 4x + 8x = 21 + -8x + 8x

Combine like terms: 4x + 8x = 12x
9 + 12x = 21 + -8x + 8x

Combine like terms: -8x + 8x = 0
9 + 12x = 21 + 0
9 + 12x = 21

Add '-9' to each side of the equation.
9 + -9 + 12x = 21 + -9

Combine like terms: 9 + -9 = 0
0 + 12x = 21 + -9
12x = 21 + -9

Combine like terms: 21 + -9 = 12
12x = 12

Divide each side by '12'.
x = 1

Simplifying
x = 1

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