Question

simplifique as expressoes algebricas em seu caderno α)4(x-1)+3(x+1) b)-2(2x-4)+5(-2x-10) c)2/5(x-0,2)-1?2(3x-4/25)

Answer 1

A) 4X -1 +3X +1=
           +7X

B)-4X -4 -7X-10
       -11X -14
            -25
A C eu n soube fazer Carol :)

Answer 2

a) 4x-4+3x+3= resposta 7x-1

b) -4x+8-10x-50= resposta -14x-42

c) obs. 2/5= 0.4                 (0.4x-0.08)-1 = resposta 0.4x+ 0.08

d) obs. 4/25= 0.16          2(3x-0.16) = resposta   6x-0.32