Line M is represented by the following equation: x − y = 8

Which equation completes the system that is satisfied by the solution (18, 10)?

2x − y = 26
x + y = 18
2x − 2y = 36
x − y = −28

Question

Line M is represented by the following equation: x − y = 8 

Which equation completes the system that is satisfied by the solution (18, 10)?

 2x − y = 26
 x + y = 18
 2x − 2y = 36
 x − y = −28

cwrw238 · Answer

Just plug in x = 18 and y = 10 into the 4 options and see which one fits

cwrw238 · Answer

for example option 2:-

x + y = 18
x = 18 and y = 10
18 + 10 = 28   not 18 so its not this one.

anonymous · Answer

i got my asnwer as c is that correct ?