8x-9=4x+40

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Solution for 8x-9=4x+40 equation:


Simplifying
8x + -9 = 4x + 40

Reorder the terms:
-9 + 8x = 4x + 40

Reorder the terms:
-9 + 8x = 40 + 4x

Solving
-9 + 8x = 40 + 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 + 8x + -4x = 40 + 4x + -4x

Combine like terms: 8x + -4x = 4x
-9 + 4x = 40 + 4x + -4x

Combine like terms: 4x + -4x = 0
-9 + 4x = 40 + 0
-9 + 4x = 40

Add '9' to each side of the equation.
-9 + 9 + 4x = 40 + 9

Combine like terms: -9 + 9 = 0
0 + 4x = 40 + 9
4x = 40 + 9

Combine like terms: 40 + 9 = 49
4x = 49

Divide each side by '4'.
x = 12.25

Simplifying
x = 12.25

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