Question

4 ·(1+?· x)=x, astfel incat  sa aiba solutia 8

Answer 1

4 ·(1+?· x)=x
4 ·(1+?*8)=8
?=1/8
4 ·(1+1/8*8)=8
4*(1+1)=8
4*2=8
8=8

Answer 2

4*(1+1*1)=8
sau
4*(1+1*0)=8
 
*  -este inmultirea