275=-x-9(9-10x)

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Solution for 275=-x-9(9-10x) equation:


Simplifying
275 = -1x + -9(9 + -10x)
275 = -1x + (9 * -9 + -10x * -9)
275 = -1x + (-81 + 90x)

Reorder the terms:
275 = -81 + -1x + 90x

Combine like terms: -1x + 90x = 89x
275 = -81 + 89x

Solving
275 = -81 + 89x

Solving for variable 'x'.

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

Add '-89x' to each side of the equation.
275 + -89x = -81 + 89x + -89x

Combine like terms: 89x + -89x = 0
275 + -89x = -81 + 0
275 + -89x = -81

Add '-275' to each side of the equation.
275 + -275 + -89x = -81 + -275

Combine like terms: 275 + -275 = 0
0 + -89x = -81 + -275
-89x = -81 + -275

Combine like terms: -81 + -275 = -356
-89x = -356

Divide each side by '-89'.
x = 4

Simplifying
x = 4

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