3(I+4)=18

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


Simplifying
3(I + 4) = 18

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

Solving
12 + 3I = 18

Solving for variable 'I'.

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

Add '-12' to each side of the equation.
12 + -12 + 3I = 18 + -12

Combine like terms: 12 + -12 = 0
0 + 3I = 18 + -12
3I = 18 + -12

Combine like terms: 18 + -12 = 6
3I = 6

Divide each side by '3'.
I = 2

Simplifying
I = 2

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