Question

Va rog frumos.....

a) 11(1-x)+7 x = 15
b) 6(x+2)- 8 = 3x +14
c) 7x-9 =2(3x+1)
d)(x-1)+ 2(x-2)+3(x-3)+ 4(x-4) = 100​

Answer 1

Răspuns:

Raspunsul il ai atașat in poza. Iti doresc mult succes si o seara frumoasa

Answer 2

a) 11-11x+7x=15

-4x=15-11=>-4x=4=>x=-1

b)6x+12-8=3x+14=>6x-3x=-12+8+14=>3x=10=>x=10/3

c)7x-9=6x+2=>7x-6x=9+2=>x=11

d)(x+1)+2x-2+3x-3+4x-4=100=>x+2x+3x+4x=-1+2+3+4+100=>10x=108=>x=108/10=>x=10,8 sau simplificat,daca trebuie fractie, 54/5

Sper ca te-am ajutat!