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

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


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

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

Reorder the terms:
-15 + 5a = 3(7 + a)
-15 + 5a = (7 * 3 + a * 3)
-15 + 5a = (21 + 3a)

Solving
-15 + 5a = 21 + 3a

Solving for variable 'a'.

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

Add '-3a' to each side of the equation.
-15 + 5a + -3a = 21 + 3a + -3a

Combine like terms: 5a + -3a = 2a
-15 + 2a = 21 + 3a + -3a

Combine like terms: 3a + -3a = 0
-15 + 2a = 21 + 0
-15 + 2a = 21

Add '15' to each side of the equation.
-15 + 15 + 2a = 21 + 15

Combine like terms: -15 + 15 = 0
0 + 2a = 21 + 15
2a = 21 + 15

Combine like terms: 21 + 15 = 36
2a = 36

Divide each side by '2'.
a = 18

Simplifying
a = 18

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