Question

1) Which variable has a coefficient of 1? x - 4y = 16 3x + 4y = 20

Answer 1

Step-by-step explanation: The number in front of your variable is called your coefficient and notice that the x does not have a coefficient.

When that happens, when there is no number in front

of your variable, you can put a 1 there to fill that position.

So x can be thought of as 1x.

Answer 2

Answer:

x-4y=16; x

Step-by-step explanation:

as coefficient of X is one whereas in second equation it is 3 for X and 4 for y ..