Question

If 19a + 10 = 124, find the value of 5a + 3

Answer 1

5a + 3 = 33

Explanation:

solve the given equation for a

19a + 10 = 124 ( subtract 10 from both sides )

19a + 10 - 10 = 124 - 10 ( simplify both sides )

19a = 114 ( divide both sides by 19 )

`(19)/(19)` a =
`(114)/(19)` , that is

a = 6

substitute a = 6 into the given expression

5a + 3 = 5(6) + 3 = 30 + 3 = 33