You mean : 7*(3+5)=7*8=56
8(5+4)+7 = 79
Find the product of 7 and the sum of 8 and 10
The sum of 1 and 7 is 8. That is, 1 + 7 = 8
8 + 7 = 15
the sum of 8 and 4 times a number is 36
five times the sum of a number and 8 is -15.
15
The sum is: 8
8
64
76