(8+2+x)8=(9+x-1)9

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Solution for (8+2+x)8=(9+x-1)9 equation:


Simplifying
(8 + 2 + x) * 8 = (9 + x + -1) * 9

Combine like terms: 8 + 2 = 10
(10 + x) * 8 = (9 + x + -1) * 9

Reorder the terms for easier multiplication:
8(10 + x) = (9 + x + -1) * 9
(10 * 8 + x * 8) = (9 + x + -1) * 9
(80 + 8x) = (9 + x + -1) * 9

Reorder the terms:
80 + 8x = (9 + -1 + x) * 9

Combine like terms: 9 + -1 = 8
80 + 8x = (8 + x) * 9

Reorder the terms for easier multiplication:
80 + 8x = 9(8 + x)
80 + 8x = (8 * 9 + x * 9)
80 + 8x = (72 + 9x)

Solving
80 + 8x = 72 + 9x

Solving for variable 'x'.

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

Add '-9x' to each side of the equation.
80 + 8x + -9x = 72 + 9x + -9x

Combine like terms: 8x + -9x = -1x
80 + -1x = 72 + 9x + -9x

Combine like terms: 9x + -9x = 0
80 + -1x = 72 + 0
80 + -1x = 72

Add '-80' to each side of the equation.
80 + -80 + -1x = 72 + -80

Combine like terms: 80 + -80 = 0
0 + -1x = 72 + -80
-1x = 72 + -80

Combine like terms: 72 + -80 = -8
-1x = -8

Divide each side by '-1'.
x = 8

Simplifying
x = 8

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