Question

Write four solutions of 3=2x+y with methods

Answer 1

Put x = 0 => y = 3 . Hence (0,3)
Put x = 1 => y = 1 . Hence (1,1)
Put x = -1 => y = 5 . Hence (-1,5)
Put x = 2 => y = -1 . Hence (2,-1)

Answer 2

y=3-2x

1) If x=0

y=3-2(0)

y=3-0

y=3

Solution:(0,3)

2)If x=3

y=3-2(3)

y=3-6

y=-3

Solution=(3,-3)

3)If x=6

y=3-2(6)

y=3-12

y=9

Solution=(6,9)

4)If y=0

0=3-2x

-3=-2x

3/2=x

x=1.5

Solution=(1.5,0)