Question

Any two solutions of the linear equations 3x+2y=9

Answer 1

Answer:

If x = 1

3(1) + 2y = 9

3 +2y = 9

2y = 9-3

2y = 6

y= 6/2

y = 3

If x = 3

3(3) +2y=9

9+2y=9

2y= 9-9

2y= 0

y = 0/2

y = 0

Hence two solutions of the linear equations 3x+2y=9 are (1, 3) and (3, 0).

Answer 2

Answer:

(i) Let x=0

then 3×0+2y=9

2y=9

Thus

y= 4.5 and x=0

(ii) Let y=0

then 3x+2×0=9

3x=9

Thus

x=3 and y=0

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