D)3x-2y=8
I added a picture explaining how I worked it out!
540 seconds which is equal to 9 minutes.
1) Solve one of the equations for either variable.
2) Substitute the expression from Step 1 into the other equation.
3) Solve the resulting equation.
4) Substitute the solution in Step 3 into one of the original equations to find the other variable.
5) Write the solution as an ordered pair.
your answer would be 13.5
7x +33 < 26 isolate the term with a variable by subtracting 33
7x < -7 divide by 7
x < -1