x-9=8(x+3)+18

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Solution for x-9=8(x+3)+18 equation:


Simplifying
x + -9 = 8(x + 3) + 18

Reorder the terms:
-9 + x = 8(x + 3) + 18

Reorder the terms:
-9 + x = 8(3 + x) + 18
-9 + x = (3 * 8 + x * 8) + 18
-9 + x = (24 + 8x) + 18

Reorder the terms:
-9 + x = 24 + 18 + 8x

Combine like terms: 24 + 18 = 42
-9 + x = 42 + 8x

Solving
-9 + x = 42 + 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 + x + -8x = 42 + 8x + -8x

Combine like terms: x + -8x = -7x
-9 + -7x = 42 + 8x + -8x

Combine like terms: 8x + -8x = 0
-9 + -7x = 42 + 0
-9 + -7x = 42

Add '9' to each side of the equation.
-9 + 9 + -7x = 42 + 9

Combine like terms: -9 + 9 = 0
0 + -7x = 42 + 9
-7x = 42 + 9

Combine like terms: 42 + 9 = 51
-7x = 51

Divide each side by '-7'.
x = -7.285714286

Simplifying
x = -7.285714286

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