Consider the system. Sox – 3y = 42
1x + 3y =-21
Part 1 out of 2
Complete the description for three different substitution methods that can be used to solve this system.
-3y) and then substitute the value Into the first equation.
D and then substitute that value Into the second
Solve the second equation forx (x =
Solve the first equation fory (y = 2X –
equation.
Solve elther equation for 3y (3y =
Into the other equation
Check
|-x or 3y = 6x -
and then substitute that value
Next