Question

scrieti sub forma de fractie ordinara ireductibila urmatoarea ecuatie:0,5x-0,25*0,4=0,2+0,05

Answer 1

x/2-25/100×4/10=
2/10+5/100
x/2-1/4×2/5=1/5+1/20
x/2-2/20=4/20+1/20
x/2-1/10=5/20
x/2=5/20+1/10
x/2=7/20
x=7/10