10+9(-10-9x)=8-x

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Solution for 10+9(-10-9x)=8-x equation:


Simplifying
10 + 9(-10 + -9x) = 8 + -1x
10 + (-10 * 9 + -9x * 9) = 8 + -1x
10 + (-90 + -81x) = 8 + -1x

Combine like terms: 10 + -90 = -80
-80 + -81x = 8 + -1x

Solving
-80 + -81x = 8 + -1x

Solving for variable 'x'.

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

Add 'x' to each side of the equation.
-80 + -81x + x = 8 + -1x + x

Combine like terms: -81x + x = -80x
-80 + -80x = 8 + -1x + x

Combine like terms: -1x + x = 0
-80 + -80x = 8 + 0
-80 + -80x = 8

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

Combine like terms: -80 + 80 = 0
0 + -80x = 8 + 80
-80x = 8 + 80

Combine like terms: 8 + 80 = 88
-80x = 88

Divide each side by '-80'.
x = -1.1

Simplifying
x = -1.1

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