5*(X-1)=15

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Solution for 5*(X-1)=15 equation: 


Simplifying
5(X + -1) = 15

Reorder the terms:
5(-1 + X) = 15
(-1 * 5 + X * 5) = 15
(-5 + 5X) = 15

Solving
-5 + 5X = 15

Solving for variable 'X'.

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

Add '5' to each side of the equation.
-5 + 5 + 5X = 15 + 5

Combine like terms: -5 + 5 = 0
0 + 5X = 15 + 5
5X = 15 + 5

Combine like terms: 15 + 5 = 20
5X = 20

Divide each side by '5'.
X = 4

Simplifying
X = 4

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