8x-9=x+4

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


Simplifying
8x + -9 = x + 4

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

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

Solving
-9 + 8x = 4 + x

Solving for variable 'x'.

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

Add '-1x' to each side of the equation.
-9 + 8x + -1x = 4 + x + -1x

Combine like terms: 8x + -1x = 7x
-9 + 7x = 4 + x + -1x

Combine like terms: x + -1x = 0
-9 + 7x = 4 + 0
-9 + 7x = 4

Add '9' to each side of the equation.
-9 + 9 + 7x = 4 + 9

Combine like terms: -9 + 9 = 0
0 + 7x = 4 + 9
7x = 4 + 9

Combine like terms: 4 + 9 = 13
7x = 13

Divide each side by '7'.
x = 1.857142857

Simplifying
x = 1.857142857

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