math ALGEBRA

Solve by graping the foll:
A. 2X+Y=5
3X-Y=10

B.2X=Y+1
2X-Y=5

I don't know what "graping the foll" is, but problem #2 has no solution, because the lines

Y = 2X -1 (from your fist equation) and
Y = 2x -5 (from your second equation)
never intersect.

gas

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