Question

How many solutions are there to each of these equations?

Answer 1

first one, put value of x= -3 and y = 0

second one, pit vale of x=7 and y= -7

Explanation:

first one,

-14(-3) -20(0) =42

or, 42-0 = 42

or, 42 = 42

proved

second one,

-14(7) -20(-7) = 42

or, -98 + 140=42

or, 42 = 42

proved