12a-3(2a-5)=45

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Solution for 12a-3(2a-5)=45 equation:


Simplifying
12a + -3(2a + -5) = 45

Reorder the terms:
12a + -3(-5 + 2a) = 45
12a + (-5 * -3 + 2a * -3) = 45
12a + (15 + -6a) = 45

Reorder the terms:
15 + 12a + -6a = 45

Combine like terms: 12a + -6a = 6a
15 + 6a = 45

Solving
15 + 6a = 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 + 6a = 45 + -15

Combine like terms: 15 + -15 = 0
0 + 6a = 45 + -15
6a = 45 + -15

Combine like terms: 45 + -15 = 30
6a = 30

Divide each side by '6'.
a = 5

Simplifying
a = 5

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