5(9+X)=40

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Solution for 5(9+X)=40 equation: 


Simplifying
5(9 + X) = 40
(9 * 5 + X * 5) = 40
(45 + 5X) = 40

Solving
45 + 5X = 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 + 5X = 40 + -45

Combine like terms: 45 + -45 = 0
0 + 5X = 40 + -45
5X = 40 + -45

Combine like terms: 40 + -45 = -5
5X = -5

Divide each side by '5'.
X = -1

Simplifying
X = -1

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