Question

The graph of pair of Linear equations in two variables 2x + 3y – 9 = 0 and

4x + 6y – 18 = 0 is ..........
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Answer 1

Answer:

y=-2x+9

y=(-4x+18)/6

Step-by-step explanation:

I am assuming you want to make y the subject thus graph?

2x+y-9=0

Take -9 to the other side thus it becomes +9

2x+y=9

subtract 2x from both sides

y=-2x+9 or y=9-2x (both are the same but the first one is more formal)

4x+6y-18=0

take -18 to the other side it becomes +18

4x+6y=18

take 4x to the other side it becomes -4x

6y=18-4x

now to make y by itself simply divide both sides by 6.

y=(18-4x)/6    or y=(-4x+18)/6  (both are the same but the second one is more formal)