The answer depends on the relationship between x and y. But since you have not bothered to share that crucial bit of information, I cannot provide a more useful answer.
76
y = 6
15 (x = 135)
x = 14
To solve the equation "what time what equals 76," you can express it mathematically as x * y = 76, where x and y are the unknowns. For example, one possible solution is x = 19 and y = 4, since 19 * 4 = 76. Other pairs of factors that satisfy this equation include (1, 76), (2, 38), and (4, 19).
3
13 ? 15
y = 10. easy!
15
that means the value of x is same as the value of y
y = 10x where x = 478 y = 10 x 478 = 4780
Insufficient information. What is x when y = 12?