Question

$frac{2+x}{14+x} = frac{4}{7}$

Answer 1

7 (2+x)=4 (14+x)
14+7x=56+4x
7x-4x=56-14
3x=42
x=14

Answer 2

спасибо

Answer 3

[tex] frac{2 + x}{14+x} = frac{4}{7} \ 7(2 + x) = 4 times (14+x) \ 14 + 7x = 56+4x \ 7x - 4x = 56- 14 \ 3x = 42 \ x = frac{ 42}{ 3} \ x = 14

Answer 4

там же 14+x в знаменателе?