HELP ASAP! Solve.
{j+k=3j−k=7

Use the substitution method.
The solution is (5, −2).
There are an infinite number of solutions.
The solution is (8, 1).
There is no solution.

Can someone check if i did this right since i really want to make sure it’s correct. if you do you so much

What will the graph look like for a system of equations that has no solution? a. the lines will be perpendicular. b. the lines will cross at one point. c. both equations will form the same line. d. the lines will be parallel.

At the beginning of 1974/75,2 years a man invested #2000 in a bank at 12.5% compound interest, if it degree #650 at the end of each two years to pay his son's school fees, after payment of interest to pay his son's school fees, how much did he have left at the beginning of the 1978/79 school year?