2a+3(a+1)=18

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Solution for 2a+3(a+1)=18 equation:


Simplifying
2a + 3(a + 1) = 18

Reorder the terms:
2a + 3(1 + a) = 18
2a + (1 * 3 + a * 3) = 18
2a + (3 + 3a) = 18

Reorder the terms:
3 + 2a + 3a = 18

Combine like terms: 2a + 3a = 5a
3 + 5a = 18

Solving
3 + 5a = 18

Solving for variable 'a'.

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

Add '-3' to each side of the equation.
3 + -3 + 5a = 18 + -3

Combine like terms: 3 + -3 = 0
0 + 5a = 18 + -3
5a = 18 + -3

Combine like terms: 18 + -3 = 15
5a = 15

Divide each side by '5'.
a = 3

Simplifying
a = 3

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