Question

Solve this question
class 9 maths 1

Answer 1

Answer:

X+3 X+2

—— = ——

X+11 X+1

By cross multiplication

(X+1)(X+3) = (X+11)(X+2)

x²+3x+1x+3= x²+2x+11x+22

shift all the X terms at one side

x²+3x+1x-x²-2x-11x=22-3

-9x= 19

x= 19

- —

9

x= -2 ⅑

Answer 2

(2) x+3/x+11=x+2/x+1

4x=2-3/11

4x=11+2/-3

4x=13/-3

4x=-4

x=-4/4

x=-1

(3) ax+by/x+y=bx+az/x+z=ay+bz/y+z

According to linear epuation in two variables,

a1/a2=b1/b2=c1/c2 ,formula

a+b/x+y=b+a/x+z=a+b/y+z

The denominator are two variables,So mentioning

as denominator 2

So,

a+b/2=a+b/2=a+b/2,

The answer is , a+b/2 in each ratio are epual