220-7(9x+8)=5(10-5x)

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Solution for 220-7(9x+8)=5(10-5x) equation:


Simplifying
220 + -7(9x + 8) = 5(10 + -5x)

Reorder the terms:
220 + -7(8 + 9x) = 5(10 + -5x)
220 + (8 * -7 + 9x * -7) = 5(10 + -5x)
220 + (-56 + -63x) = 5(10 + -5x)

Combine like terms: 220 + -56 = 164
164 + -63x = 5(10 + -5x)
164 + -63x = (10 * 5 + -5x * 5)
164 + -63x = (50 + -25x)

Solving
164 + -63x = 50 + -25x

Solving for variable 'x'.

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

Add '25x' to each side of the equation.
164 + -63x + 25x = 50 + -25x + 25x

Combine like terms: -63x + 25x = -38x
164 + -38x = 50 + -25x + 25x

Combine like terms: -25x + 25x = 0
164 + -38x = 50 + 0
164 + -38x = 50

Add '-164' to each side of the equation.
164 + -164 + -38x = 50 + -164

Combine like terms: 164 + -164 = 0
0 + -38x = 50 + -164
-38x = 50 + -164

Combine like terms: 50 + -164 = -114
-38x = -114

Divide each side by '-38'.
x = 3

Simplifying
x = 3

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