Question

Calcule o valor das incógnitas? 10/x+10 = 12/2x

Answer 1

10+10=(12/2x).x
20=12.2x.x
20=12.4x
20/12=4x
4x=16,66
x=0,4166

Answer 2

10/x+10=12/2x

20x=12(x+10)

20X=12x+120

20x-12x=120

8×=120

×=120/8

X=15

Fiz da forma que meu professor ensinou