Question

x/y=5/4 calculati valoarea lui 6x+2y/3x-y.​

Answer 1

Răspuns:

x/y=5/4

x=5×k

y=4×k

acuma inlocuim

6×5×k+2×4k/3×5×k-4×k

38k/11k

Answer 2

$\frac{x}{y} = \frac{5}{4}$

$\frac{6x + 2y}{3x - y}$

Răspuns:

$\frac{6 \times 5 + 2 \times 4}{3 \times 5 - 4} = \frac{30 + 8}{15 - 4} = \frac{38}{11} = 3 \times \frac{5}{11}$