3(a+5)=5(a+7)

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Solution for 3(a+5)=5(a+7) equation:


Simplifying
3(a + 5) = 5(a + 7)

Reorder the terms:
3(5 + a) = 5(a + 7)
(5 * 3 + a * 3) = 5(a + 7)
(15 + 3a) = 5(a + 7)

Reorder the terms:
15 + 3a = 5(7 + a)
15 + 3a = (7 * 5 + a * 5)
15 + 3a = (35 + 5a)

Solving
15 + 3a = 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 + 3a + -5a = 35 + 5a + -5a

Combine like terms: 3a + -5a = -2a
15 + -2a = 35 + 5a + -5a

Combine like terms: 5a + -5a = 0
15 + -2a = 35 + 0
15 + -2a = 35

Add '-15' to each side of the equation.
15 + -15 + -2a = 35 + -15

Combine like terms: 15 + -15 = 0
0 + -2a = 35 + -15
-2a = 35 + -15

Combine like terms: 35 + -15 = 20
-2a = 20

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

Simplifying
a = -10

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