Question

Solve the system of equations: y−2x=1 6x−y=7

Answer 1

y - 2x = 1

6x - y = 7

Adding equations,

4x = 8

x = 2

y = 2x + 1 = 5

Answer: (2,5)

Check:

5-2(2)=1, good

6(2)-5=7, good