Plese help

1. 5

2. 8

3. 15

4. 20

Step-by-step explanation:

Similarly to last time, you can plug in the known value to get the unknown. For the first row, 3=j-2, and j=5. For the second row, k=10-2=8. For the third row, 13=j-2 and j is 15. For the last row, 18=j-2 and j is 20. Hope this helps!

example 2 – simplify: step 1: completely factor both the numerators and denominators of all fractions. step 2: change the division sign to a multiplication sign and flip (or reciprocate) the fraction after the division sign; essential you need to multiply by the reciprocal. step 3 : cancel or reduce the fractions.

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