-3(-5a-4)+5=-13

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Solution for -3(-5a-4)+5=-13 equation:


Simplifying
-3(-5a + -4) + 5 = -13

Reorder the terms:
-3(-4 + -5a) + 5 = -13
(-4 * -3 + -5a * -3) + 5 = -13
(12 + 15a) + 5 = -13

Reorder the terms:
12 + 5 + 15a = -13

Combine like terms: 12 + 5 = 17
17 + 15a = -13

Solving
17 + 15a = -13

Solving for variable 'a'.

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

Add '-17' to each side of the equation.
17 + -17 + 15a = -13 + -17

Combine like terms: 17 + -17 = 0
0 + 15a = -13 + -17
15a = -13 + -17

Combine like terms: -13 + -17 = -30
15a = -30

Divide each side by '15'.
a = -2

Simplifying
a = -2

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