Question

which of the following is not an equation in one variable?
1 )= 2x + 5 =9
2) = 3 y =8
3)= 3 x + 4 y =9
4) = 6 z / 7 = 2
​

Answer 1

Answer:

1) x=2

2) y=8/3

I can5 tell 3 and 4

Answer 2

7778777777777777777777777++++++++++