–5x + 2y = 10
x – 3y = 11
–5x + 2y = 10
x – 3y = 11
Multiply the bottom equation by 5, this gives you 5x so it cancels with -5x
–5x + 2y = 10
5(x – 3y = 11)
it then becomes
–5x + 2y = 10
5x –15y = 55
Now individually add the terms 5x and -5x to get 0x. Then add 2y and -15y to get -13y, and finally 10 and 55 to get 65
0x - 13y = 65
Now you can solve for y
Divide both sides by -13
So y=-5. Now solve for x by plugging in y.
Add 10 to both sides
Simplify
Divide both sides by -5
So x=-4 and y=-5
Solve the system: -x + 2y - 6z = 4 x + y + 2z = 3 2x + 3y + 2z = 5 What...(answered by Edwin McCravy)
Solve this system of equations.
3y - z = -1
x + 5y - z = -4
-3x + (answered by Edwin McCravy)