15(a-1)=45

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Solution for 15(a-1)=45 equation:


Simplifying
15(a + -1) = 45

Reorder the terms:
15(-1 + a) = 45
(-1 * 15 + a * 15) = 45
(-15 + 15a) = 45

Solving
-15 + 15a = 45

Solving for variable 'a'.

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

Add '15' to each side of the equation.
-15 + 15 + 15a = 45 + 15

Combine like terms: -15 + 15 = 0
0 + 15a = 45 + 15
15a = 45 + 15

Combine like terms: 45 + 15 = 60
15a = 60

Divide each side by '15'.
a = 4

Simplifying
a = 4

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