Question

Solve Graphically : 2x+2y-3=0 and x+2y+1=0

THANKS!

Answer 1

2x + 2y = 3 – (1)

x + 2y = -1 – (2)

Multiply b/s of (2) by 2 and subtract from (1), we get

2x + 2y - 2x - 4y = 3 + 2

-2y = 5

y = -5/2

Put the value of y in (2), we get

x + 2(-5/2) = -1

x - 5 = -1

x = 4