Question

Ajutor va rog la amandoua exercitiile!Va rog repede!

Answer 1

Răspuns:

11.a)(12+x)+14=4×x-4

12+x=4×x-10

x=4

b)(3×x+2)÷4=5

3×x+2=20

3x=18

x=6

c)((x+43)×3+3)=33

(x+43)=10

x=33

d)5×x=1262,5

x=252,5

Sper ca intelegi