Question 343432
Five times the sum of 3 and twice some number is 70. What is the number?


let x = some number
sum of 3 and twice some number = 3 + 2x
five times the sum of 3 and twice some number = 5 * (3 + 2x)



5 * (3 + 2x) = 70
15 + 10x = 70 (distributed the 5)
10x = 55 (subtracted 15 from both sides)
x = 55/10 = 5.5