4(a+3)=18

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Solution for 4(a+3)=18 equation: 


Simplifying
4(a + 3) = 18

Reorder the terms:
4(3 + a) = 18
(3 * 4 + a * 4) = 18
(12 + 4a) = 18

Solving
12 + 4a = 18

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 + 4a = 18 + -12

Combine like terms: 12 + -12 = 0
0 + 4a = 18 + -12
4a = 18 + -12

Combine like terms: 18 + -12 = 6
4a = 6

Divide each side by '4'.
a = 1.5

Simplifying
a = 1.5

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