Question

please answer with full explanation​

Answer 1

Answer.7-

$\frac{x - 8}{4} = 15 + ( \frac{5 - x}{2} ) \\ \frac{x - 8}{4} = \frac{30 + 5 - x}{2} \\ 2(x - 8) = 4(35 - x) \\ 2x - 16 = 140 - 4x \\ 2x + 4x = 140 + 16 \\ 6x = 156 \\ x = \frac{156}{6} \\ x = 26$

Answer 2

Answer:

Explanation:

let the present age of ram and rehman is 8x and 9x

so, after 5years the ratio of their will be 9:10

8x+5/9x+5=9/10

10(8x+5) =9(9x+5)

= 80x+50=81x+45

80x-81x=-50+45

x=5

present age of

ram=8×5=40year

rehman= 9×5=45year