Question

Are These Right?

Answer 1

For the first problem, step one would be correct because it's being solved by elimination

Answer 2

@texaschic101

Answer 3

Step 2 would have to be incorrect for the first one.

Answer 4

So It's Actually Step 2 Thats Wrong?

Answer 5

Yes because they did not complete the problem of -3(15-2z), they left out the multiply by -3 in step 2.

Answer 6

ohh

Answer 7

What About The Second One

Answer 8

The second one is correct, there will be infinite solutions.

Answer 9

Here is a graph of the equation of the 2nd problem. Both lines lay on each other, making it infinite.