Question

a) x/3 + 2 = 8
b) ×/2 + 3/2 × = 1 - 7/10
c) 2x + 2/3 = 3x + 2
d) 2/5 + 3x -2 = x +10
e) 2/3 x + 1/4 x = 6
f) 1/2 x - 3x - 1/3 = 8x + 12​

Answer 1

Resposta:

1900102002jdjw010191011010

Answer 2

Resposta:

Explicação passo-a-passo:

a) x/3 + 2 = 8  

(mmc) ---- x + 6 /3 = 24/3

(cancela os divisores)---- x + 6 = 24

(passa o 6 pro outro lado) x = 24-6 ---- x = 12

b) ×/2 + 3/2 × = 1 - 7/10

(mmc) ----- 5x + 15x/10 = 10-7/10

(cancela os divisores) --- 5x + 15x = 10-7 → 20x = 3

(passa o 20 dividindo) --- x = 3/20

c) 2x + 2/3 = 3x + 2

(mmc) --- 6x + 2/3 =9x + 6/3

(cancela o divisor) --- 6x + 2 = 9x + 6

(coloca os "x" de um lado e os números do outro) --- 6x - 9x = 6 - 2

-3x = 4 → x = - 4/3

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

(mmc) --- 2+15x-10/5 = 5x+50/5

(cancela o divisor e separa os "x" dos números) --- 15x-5x = 50+10-2

--- 10x = 58 ---- x = 5,8

e) 2/3 x + 1/4 x = 6

(mmc) --- 8x+3x/12 = 72/12

(cancela o divisor) --- 8x+3x=72 --- 11x = 72 --- x = 6,54

f) 1/2 x - 3x - 1/3 = 8x + 12​

(mmc) --- 3x-3x-2/6 = 48x+72 ( 3x -3x = 0)

(cancela o divisor e separa os "x" dos números) -- -2-72 = 48x-- -74 = 48x--- ----- x = -1,5

Espero ter ajudado! :)