Question

y-(7-8x)/9y-(3+4y)=2/3

Answer 1

Ur answer......

D( y )

9*y-(4*y)-3 = 0

9*y-(4*y)-3 = 0

9*y-(4*y)-3 = 0

9*y-4*y-3 = 0

5*y-3 = 0 // + 3

5*y = 3 // : 5

y = 3/5

y in (-oo:3/5) U (3/5:+oo)

(y+8*y-7)/(9*y-(4*y)-3) = 2/3 // - 2/3

(y+8*y-7)/(9*y-(4*y)-3)-(2/3) = 0

(y+8*y-7)/(9*y-4*y-3)-2/3 = 0

(9*y-7)/(5*y-3)-2/3 = 0

(3*(9*y-7))/(3*(5*y-3))+(-2*(5*y-3))/(3*(5*y-3)) = 0

3*(9*y-7)-2*(5*y-3) = 0

17*y-15 = 0

(17*y-15)/(3*(5*y-3)) = 0

(17*y-15)/(3*(5*y-3)) = 0 // * 3*(5*y-3)

17*y-15 = 0

17*y-15 = 0 // + 15

17*y = 15 // : 17

y = 15/17

y = 15/17

Answer 2

Answer:

• Y=15/17.
• Y=15/17.

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