Question

8a - 3(2a + 5) = 13.

Answer 1

a = 14

distribute parenthesis on left side and simplify

8a - 6a - 15 = 13

2a - 15 = 13 ( add 15 to both sides )

2a = 28 ( divide both sides by 2 )

a =
`(28)/(2)` = 14