4x-5(-x-20)=55

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Solution for 4x-5(-x-20)=55 equation:


Simplifying
4x + -5(-1x + -20) = 55

Reorder the terms:
4x + -5(-20 + -1x) = 55
4x + (-20 * -5 + -1x * -5) = 55
4x + (100 + 5x) = 55

Reorder the terms:
100 + 4x + 5x = 55

Combine like terms: 4x + 5x = 9x
100 + 9x = 55

Solving
100 + 9x = 55

Solving for variable 'x'.

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

Add '-100' to each side of the equation.
100 + -100 + 9x = 55 + -100

Combine like terms: 100 + -100 = 0
0 + 9x = 55 + -100
9x = 55 + -100

Combine like terms: 55 + -100 = -45
9x = -45

Divide each side by '9'.
x = -5

Simplifying
x = -5

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