Question

resolva a equacao x=3(4x+4) +2(3x-1)=20 e y=2-y/10+y-5/8=1/2 determine x+y

Answer 1

3(4x +4) +2(3x -1) = 20
12x +12 +6x -2 = 20
18x = 22 -12
18x = 10
x = 10/18

2 -y/10 +y -5/8 = 1/2 MMC Entre 10, 8 e 2 = 40
40 -4y +40y -25 = 20
36y = 45 -40
36y = 5
y = 5/36 


10/18 + 5/36 MMC Entre 18 e 36 = 36
20 + 5
25

x +y = 25

Obs : Tem a Grande Chance de Estar Incorreto.