how do you solve a linear system.
7. x-y=8
x+y=-2
One way is to add the two equations.
2x = 6
x = 3
Insert that value into one of the equations.
y = -5
Check by inserting both values into the other equation.
7. x-y=8
x+y=-2
2x = 6
x = 3
Insert that value into one of the equations.
y = -5
Check by inserting both values into the other equation.