Answer:
Explanation:
Number of stamps that Zetty has = x
Number of stamps that Rina has = 2*x = 2x
Number of stamps that Suzy has = x - 4
Total stamps = 36
x + 2x + x- 4 = 36 {Combine like terms}
4x - 4 = 36
Add 4 to both sides
4x = 36+ 4
4x = 40
Divide both sides by 4
x = 40/4
x = 10
Number of stamps that Zetty has = 10