Question

Calculati:
a)x+1,3=2,5
b)2,87-x=1,07
c)2x-7,51=12,25
d)4x+45,7=98,2
e)2,1 ori x-0,3=2,22
f)15-3,5ori x=4,5

Answer 1

a)x=2,5-1,3=>x=1,2 b)x=2,87+1,07=>x=3,94 c)2x=7,51+12,25=>2x= 19,76=>x=19,76:2=>x= 9,88 d)4x=98,2-45,7=>4x= 52,5=>x=52,5:4=>x= 13,125 scuze ultimele doua nu le stiu