Solve the question 2 (a+8) = 18

a=17

Step-by-step explanation:

Simplifying

2 (a + - 8) = 18

Reorder the terms:

2 (-8 + a) = 18

(-8 * 2 + a * 2) = 18

(-16 + 2a) = 18

Solving

-16 + 2a = 18

Solving for variable 'a'.

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

Add '16' to each side of the equation.

-16 + 16 + 2a = 18 + 16

Combine like terms: - 16 + 16 = 0

0 + 2a = 18 + 16

2a = 18 + 16

Combine like terms: 18 + 16 = 34

2a = 34

Divide each side by '2'.

a = 17