Question

Is (2,-1) a solution of 2x-y=5? Explain and solve please and thank you.

Answer 1

first replece x and y , 2(2)-(-1)=5

4 +1=5 correct

Explanation:

Answer 2

YES

Explanation:

2x-y=5

2(2)-(-1)=5

4-(-1)=5

4+1=5

5=5