-5(9-4x)=40

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Solution for -5(9-4x)=40 equation: 


Simplifying
-5(9 + -4x) = 40
(9 * -5 + -4x * -5) = 40
(-45 + 20x) = 40

Solving
-45 + 20x = 40

Solving for variable 'x'.

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

Add '45' to each side of the equation.
-45 + 45 + 20x = 40 + 45

Combine like terms: -45 + 45 = 0
0 + 20x = 40 + 45
20x = 40 + 45

Combine like terms: 40 + 45 = 85
20x = 85

Divide each side by '20'.
x = 4.25

Simplifying
x = 4.25

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