3(a+5)=21.3

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Solution for 3(a+5)=21.3 equation:


Simplifying
3(a + 5) = 21.3

Reorder the terms:
3(5 + a) = 21.3
(5 * 3 + a * 3) = 21.3
(15 + 3a) = 21.3

Solving
15 + 3a = 21.3

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 + 3a = 21.3 + -15

Combine like terms: 15 + -15 = 0
0 + 3a = 21.3 + -15
3a = 21.3 + -15

Combine like terms: 21.3 + -15 = 6.3
3a = 6.3

Divide each side by '3'.
a = 2.1

Simplifying
a = 2.1

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