Question

2x - 6y = 5
x + y = 2
Solve the system of equations

Answer 1

rearrange the second equation:
x = 2-y
Now sub this into the first equation for x...
2(2-y) - 6y = 5
Solve for y, then solve for x

Answer 2

x = 2-y
Now sub this into the first equation for x...
2(2-y) - 6y = 5
4 - 2y - 6y = 5
-8y = 1
y = - 1/8
put in eq.2
x = 2 - (-1/8)
x = (16 + 1)/8
x = 17/8