II need help in 5 min⊕
Suppose we have 2 fair 6-sided dice numbered from 1 to 6. If we roll them both, what is the probability that the two numbers shown sum to 7?

2/12 or 1/6

Step-by-step explanation:

take the number of how many sides there are in this case 12 and in this case how many 7s there in this case 2 so that would be 2/12 but if it needs to be in simplest form it would be 1/6

x = -3

y = -18

step-by-step explanation:

to solve by substitution, substitute one variable and solve for the other. then substitute again to find the remaining variable.

x-1/3(3x-9) = -3 since y=3x-9 substittute y.

x-1/3(3x-9)=-3

x + x +3 = -3

2x+3=-3

2x+3-3= -3-3

2x=-6

x=-3

substitute again into y=3x-9

y=3(-3)-9

y=-9-9

y=-18