3(5a-15)=

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Solution for 3(5a-15)= equation: 


Simplifying
3(5a + -15) = 0

Reorder the terms:
3(-15 + 5a) = 0
(-15 * 3 + 5a * 3) = 0
(-45 + 15a) = 0

Solving
-45 + 15a = 0

Solving for variable 'a'.

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

Add '45' to each side of the equation.
-45 + 45 + 15a = 0 + 45

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

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

Divide each side by '15'.
a = 3

Simplifying
a = 3

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