Pablo needs to read 5 novels each month. Let N be the number of novels Pablo needs to read in M months.
Write an equation relating N to M. Then use this equation to find the number of novels Pablo needs to read in 13 months.

65

Step-by-step explanation:

N x M

13 = M

5 = N

13 x 5 = 65

your answer would be 10x - 1

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