Answer:
X = 15 Y=5
Step-by-step explanation:
- Line up the common terms (ex: x under x, y under y)
- Try to find a common term for one variable so you can cancel it out.
- in this case, it's easier to cancel out the x terms.
- multiply the 2nd equation by -2. You should get -2 -20 = -80.
- eliminate the x terms and subtract negative 10 from 4y and subtract 80 from 10.
- you should be left with -14y = -70
- isolate the y and you will get y equals 5.
Now that we know what y equals, plug that value into any one of the two equations.
Ex: 2x -4(5) =10
2x -20 = 10
2x =30
x =15
Hope this helped !
