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Akram thought of a number, added 7, multiplied by 3, took away 5 and divided by 4 to give an answer of 7. What was the starting number?
- 2
- 3
- 4
- 5
let suppose number is X
x+(7*3)-5/4=7
x+21-4/4=7
x+4=7
x=7-4
x=3
let suppose number is X
x+(7*3)-5/4=7
x+21-4/4=7
x+4=7
x=7-4
x=3