x+8x-28=100

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Solution for x+8x-28=100 equation:


Simplifying
x + 8x + -28 = 100

Reorder the terms:
-28 + x + 8x = 100

Combine like terms: x + 8x = 9x
-28 + 9x = 100

Solving
-28 + 9x = 100

Solving for variable 'x'.

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

Add '28' to each side of the equation.
-28 + 28 + 9x = 100 + 28

Combine like terms: -28 + 28 = 0
0 + 9x = 100 + 28
9x = 100 + 28

Combine like terms: 100 + 28 = 128
9x = 128

Divide each side by '9'.
x = 14.22222222

Simplifying
x = 14.22222222

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