Question

pfvr me ajudem nessa conta?

x/10 + 3/15 = x/2 + 4/5

Answer 1

O MMC entre 10, 15, 2 e 5 é igual a 30.

$\frac{x}{10} +\frac{3}{15} =\frac{x}{2} +\frac{4}{5}$

$\frac{x(3)+(3)2}{30} =\frac{(x)15+(4)6}{30}$

$\frac{3x+6}{30} =\frac{15x+24}{30}$

$3x+6=15x+24$

$3x-15x=+24-6$

$-12x=18$

$x=-\frac{18}{12} =-\frac{3}{2}$

Answer 2

Tira o mmc de 10,15,2,5=30

3x+6=15x+24

3x-15x=24-6

-12x=18

Multiplica por (-1)

12x=-18

x=-18/12

Simplifica por 3

x=-6/4

Simplifica por 2

x=-3/2