Question

Quanto e 10 Mais a metade do preco total?

Answer 1

10+ 1x/2 =x
1x/2-x=-10
1x/2 -2x/2= -10
-(-1x/2=-10)
1x/2=10
x= 10/1/2
x=10 . 2/1
x=20/1
x= 20