Question

Four times the sum of a number and ten is 60. find the number.

Answer choices:

A. 4
B. 5
C. 6
D. 7​

Answer 1

B. 5

Explanation:

x - the number

x + 10 - the sum of the number and ten

4×(x + 10) - four times the sum of the number and ten

4×(x + 10) = 60

÷4 ÷4

x + 10 = 15

-10 -10

x = 5