5x-y=7 3x+2y=12

Answer 1

You have 2 equations 2 unknowns, so you should get a unique solution

multiply the 1st equation by 2 to get 10x-2y=14

Now add the 2nd equation

13x = 26

x = 26/13 = 2

x=2

substitute into the original equation x=2

5(2) - y = 7

10-y = 7

y=3

Answer 2

Finding x and y.

Step 1: change 5x-y=7 to y=5x-7

Step 2: Plug in y --> 3x + 2 (5x-7) = 12

Solve to get x=2

Next, plug x=2 into either equation to get the value of y.

y=3