Question

somadhan kori:
i. 12x+17 2x+15
------------- __ ---------- = 3 1/5
3x+1 x+7

Answer 1

Answer:

(12x+17)/(3x+1) - (2x+15)/(x+7) = 3 1/5

((12x+17)(x+7) - (2x+15)(3x+1))/((x+7)(3x+1)) = 16/5

(12x*x+101x+119-6x*x-47x-15)/(3x*x+22x+7) = 16/5

5(6x*x+54x+104)=16(3x*x+22x+7)

30x*x+270x+520 = 48x*x+352x+112

18x*x+82x-408 = 0

9x*x+41x-204 = 0

9x*x - 27x + 68x - 204 = 0

9x(x-3)+68(x-3) = 0

(9x+68)(x-3) = 0

x = -68/9 or 3

Step-by-step explanation:

hope this help you