24=-3(2a-15)-a

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Solution for 24=-3(2a-15)-a equation:


Simplifying
24 = -3(2a + -15) + -1a

Reorder the terms:
24 = -3(-15 + 2a) + -1a
24 = (-15 * -3 + 2a * -3) + -1a
24 = (45 + -6a) + -1a

Combine like terms: -6a + -1a = -7a
24 = 45 + -7a

Solving
24 = 45 + -7a

Solving for variable 'a'.

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

Add '7a' to each side of the equation.
24 + 7a = 45 + -7a + 7a

Combine like terms: -7a + 7a = 0
24 + 7a = 45 + 0
24 + 7a = 45

Add '-24' to each side of the equation.
24 + -24 + 7a = 45 + -24

Combine like terms: 24 + -24 = 0
0 + 7a = 45 + -24
7a = 45 + -24

Combine like terms: 45 + -24 = 21
7a = 21

Divide each side by '7'.
a = 3

Simplifying
a = 3

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