Question

a)3,89+4(x+5,3)=98,51 un exercitiu b) 20_6(x_4,9)=14al doilea exercitiu

Answer 1

a) 3,89+4x+21,2=98,51
4x=98,51-3,89-21,2
4x=73,42
x=73,42:4
x=18,355
b) 20-6x+4,9=14
-6x=14-20-4,9
-6x=-10,6
x=-10,6:-6
x=1,7666667