Question

Six times a number increased by 12 plus 3 times the number increased by 6 is equal to 58.5. What is the number?

Answer 1

z = 4.5

Explanation:

(6 x z) + 12 + (3 x z) + 6 = 58.5

=> 6z + 12 + 3z + 6 = 58.5

=> 9z + 18 = 58.5

=> 9z = 58.5 - 18

=> 9z = 40.5

=> z = 40.5/9

=> z = 4.5

Hoped this helped.