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

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


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

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

Combine like terms: 8x + 7x = 15x
-4 + 15x = 4x + 5x + -9

Reorder the terms:
-4 + 15x = -9 + 4x + 5x

Combine like terms: 4x + 5x = 9x
-4 + 15x = -9 + 9x

Solving
-4 + 15x = -9 + 9x

Solving for variable 'x'.

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

Add '-9x' to each side of the equation.
-4 + 15x + -9x = -9 + 9x + -9x

Combine like terms: 15x + -9x = 6x
-4 + 6x = -9 + 9x + -9x

Combine like terms: 9x + -9x = 0
-4 + 6x = -9 + 0
-4 + 6x = -9

Add '4' to each side of the equation.
-4 + 4 + 6x = -9 + 4

Combine like terms: -4 + 4 = 0
0 + 6x = -9 + 4
6x = -9 + 4

Combine like terms: -9 + 4 = -5
6x = -5

Divide each side by '6'.
x = -0.8333333333

Simplifying
x = -0.8333333333

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