Question

Resposta das expressões algébricas a seguir:
10 + 2/5 x - 3(1 - x) + 3

2 (9x + 4) + 6x - 4 (7 + x)

8-5x/3 + 4 - x

Answer 1

Resposta:

10+2/5x-3+x+3=

7/5x=-10

x=-10÷7/5

x=-10×5/7

x= -50/7

2(9x+4)+6x-4(7+x)=

18x+8+6x-28-4x=

20x=+20

x=1

8-5x/3+4-x=

24-5x+12-3x=

-8x=-36

8x=36

x=36/8

x=18/4

x=9/2