Question

Of the following, the linear equation in one variable x, is *

2 points

(a) 4/x = x/4

(b) 1/x + 1/x−1 = 1

(c) x/2 + x/3 + 1/4

(d) x² + 2x + 3 = 0​

Answer 1

Answer:

a) 4/x =x/4

= x/4 -x/4

= 0

b) 1/x + 1/x -1= 1

2/x -1=1

2-1x/x=1

2-1=1

1=1

=1-1=0

c) x/2+ x/3 +1/4

4(2x) +3(1) /6

8x + 3/6

=4x

d) x²+2x+3=0