3(4+5a)=30

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Solution for 3(4+5a)=30 equation: 


Simplifying
3(4 + 5a) = 30
(4 * 3 + 5a * 3) = 30
(12 + 15a) = 30

Solving
12 + 15a = 30

Solving for variable 'a'.

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

Add '-12' to each side of the equation.
12 + -12 + 15a = 30 + -12

Combine like terms: 12 + -12 = 0
0 + 15a = 30 + -12
15a = 30 + -12

Combine like terms: 30 + -12 = 18
15a = 18

Divide each side by '15'.
a = 1.2

Simplifying
a = 1.2

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