5(2a-3)=21

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Solution for 5(2a-3)=21 equation:


Simplifying
5(2a + -3) = 21

Reorder the terms:
5(-3 + 2a) = 21
(-3 * 5 + 2a * 5) = 21
(-15 + 10a) = 21

Solving
-15 + 10a = 21

Solving for variable 'a'.

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

Add '15' to each side of the equation.
-15 + 15 + 10a = 21 + 15

Combine like terms: -15 + 15 = 0
0 + 10a = 21 + 15
10a = 21 + 15

Combine like terms: 21 + 15 = 36
10a = 36

Divide each side by '10'.
a = 3.6

Simplifying
a = 3.6

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