3x-7x-9=4x+4-9

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Solution for 3x-7x-9=4x+4-9 equation:


Simplifying
3x + -7x + -9 = 4x + 4 + -9

Reorder the terms:
-9 + 3x + -7x = 4x + 4 + -9

Combine like terms: 3x + -7x = -4x
-9 + -4x = 4x + 4 + -9

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

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

Solving
-9 + -4x = -5 + 4x

Solving for variable 'x'.

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

Add '-4x' to each side of the equation.
-9 + -4x + -4x = -5 + 4x + -4x

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

Combine like terms: 4x + -4x = 0
-9 + -8x = -5 + 0
-9 + -8x = -5

Add '9' to each side of the equation.
-9 + 9 + -8x = -5 + 9

Combine like terms: -9 + 9 = 0
0 + -8x = -5 + 9
-8x = -5 + 9

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

Divide each side by '-8'.
x = -0.5

Simplifying
x = -0.5

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