5a-15=-5(a+7)

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Solution for 5a-15=-5(a+7) equation:


Simplifying
5a + -15 = -5(a + 7)

Reorder the terms:
-15 + 5a = -5(a + 7)

Reorder the terms:
-15 + 5a = -5(7 + a)
-15 + 5a = (7 * -5 + a * -5)
-15 + 5a = (-35 + -5a)

Solving
-15 + 5a = -35 + -5a

Solving for variable 'a'.

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

Add '5a' to each side of the equation.
-15 + 5a + 5a = -35 + -5a + 5a

Combine like terms: 5a + 5a = 10a
-15 + 10a = -35 + -5a + 5a

Combine like terms: -5a + 5a = 0
-15 + 10a = -35 + 0
-15 + 10a = -35

Add '15' to each side of the equation.
-15 + 15 + 10a = -35 + 15

Combine like terms: -15 + 15 = 0
0 + 10a = -35 + 15
10a = -35 + 15

Combine like terms: -35 + 15 = -20
10a = -20

Divide each side by '10'.
a = -2

Simplifying
a = -2

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