4x-9=75-8x

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Solution for 4x-9=75-8x equation:


Simplifying
4x + -9 = 75 + -8x

Reorder the terms:
-9 + 4x = 75 + -8x

Solving
-9 + 4x = 75 + -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 = 75 + -8x + 8x

Combine like terms: 4x + 8x = 12x
-9 + 12x = 75 + -8x + 8x

Combine like terms: -8x + 8x = 0
-9 + 12x = 75 + 0
-9 + 12x = 75

Add '9' to each side of the equation.
-9 + 9 + 12x = 75 + 9

Combine like terms: -9 + 9 = 0
0 + 12x = 75 + 9
12x = 75 + 9

Combine like terms: 75 + 9 = 84
12x = 84

Divide each side by '12'.
x = 7

Simplifying
x = 7

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