Question

. Which of the following equations will intersect the equation x + y = 10 at one point?
a) x ‒ y = 10
b) 2x + 2y = 10
c) 3x +3y = 30
d) ‒ x ‒ y = 10

Answer 1

Answer:

a) x= 15,y=10

b) x=2,y=6

c) x=5,y=5

d) x=5,y=5