Question

descubra os numeros destes dois circuitos

Answer 1

a) (x-5+8)×5+9=x ///b) (X×2)×2-5+6=x

(x+3)×5+9=x ///2x×2-5+6=x

5x+15+9=x ///4x+1=x

5x+24=x ///3x=-1

5x-x=-24 ///x= -1/3

4x= -24

x=-24/4

x= -6