-15=5(3a-10-5a)

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Solution for -15=5(3a-10-5a) equation:


Simplifying
-15 = 5(3a + -10 + -5a)

Reorder the terms:
-15 = 5(-10 + 3a + -5a)

Combine like terms: 3a + -5a = -2a
-15 = 5(-10 + -2a)
-15 = (-10 * 5 + -2a * 5)
-15 = (-50 + -10a)

Solving
-15 = -50 + -10a

Solving for variable 'a'.

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

Add '10a' to each side of the equation.
-15 + 10a = -50 + -10a + 10a

Combine like terms: -10a + 10a = 0
-15 + 10a = -50 + 0
-15 + 10a = -50

Add '15' to each side of the equation.
-15 + 15 + 10a = -50 + 15

Combine like terms: -15 + 15 = 0
0 + 10a = -50 + 15
10a = -50 + 15

Combine like terms: -50 + 15 = -35
10a = -35

Divide each side by '10'.
a = -3.5

Simplifying
a = -3.5

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