Question

ola me estou no 7 ano preciso da ajuda de vcs

calcule o valor de x

a)$\frac{3}{9} - \frac{x}{3}$
b)
$\frac{2}{x} = \frac{6}{24}$
c)
$\frac{13}{5} - \frac{6}{x}$
d)
$\frac{5}{x} = \frac{1}{0.8}$
help

Answer 1

A - 3/9 = x/3 9×= 9 × = 9/9 × = 1
B - 2/× = 6/24 6× = 48 × = 48/6 × = 8
C - 3/5 = 6/× 3× = 30 × = 30/3 × = 10
D - 5/× = 1/0,8 1× = 4 × = 4/1 × = 4