Question

Write 4 solutions for 2x + y = 3

Answer 1

2x+ y=3

y= 3-2x

put x=1

y=3-2×1=1

putx=2

y=3-2×2=-1

putx=0

y=3-2×0=3

put x=-1

y= 3-2×(-1)=5

solutions are: (-1,5)(0,3)(2,-1)(1,1)

Answer 2

put x=o

then we have 2×0+y=3

0+y=3

y=3

now put x=1

then we have 2×1+y=3

2+y=3

y=3-2

y=1

now put x=-1

then we have 2×-1+y=3

-2+y=3

y=3+2

y=5

now put x=2

then we have 2×2+y=3

4+y=3

y=3-4

y=-1