8x+9=4-5x-7x

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Solution for 8x+9=4-5x-7x equation:


Simplifying
8x + 9 = 4 + -5x + -7x

Reorder the terms:
9 + 8x = 4 + -5x + -7x

Combine like terms: -5x + -7x = -12x
9 + 8x = 4 + -12x

Solving
9 + 8x = 4 + -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.
9 + 8x + 12x = 4 + -12x + 12x

Combine like terms: 8x + 12x = 20x
9 + 20x = 4 + -12x + 12x

Combine like terms: -12x + 12x = 0
9 + 20x = 4 + 0
9 + 20x = 4

Add '-9' to each side of the equation.
9 + -9 + 20x = 4 + -9

Combine like terms: 9 + -9 = 0
0 + 20x = 4 + -9
20x = 4 + -9

Combine like terms: 4 + -9 = -5
20x = -5

Divide each side by '20'.
x = -0.25

Simplifying
x = -0.25

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