4a+15=5(a-5)

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Solution for 4a+15=5(a-5) equation:


Simplifying
4a + 15 = 5(a + -5)

Reorder the terms:
15 + 4a = 5(a + -5)

Reorder the terms:
15 + 4a = 5(-5 + a)
15 + 4a = (-5 * 5 + a * 5)
15 + 4a = (-25 + 5a)

Solving
15 + 4a = -25 + 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 + 4a + -5a = -25 + 5a + -5a

Combine like terms: 4a + -5a = -1a
15 + -1a = -25 + 5a + -5a

Combine like terms: 5a + -5a = 0
15 + -1a = -25 + 0
15 + -1a = -25

Add '-15' to each side of the equation.
15 + -15 + -1a = -25 + -15

Combine like terms: 15 + -15 = 0
0 + -1a = -25 + -15
-1a = -25 + -15

Combine like terms: -25 + -15 = -40
-1a = -40

Divide each side by '-1'.
a = 40

Simplifying
a = 40

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