Question

b)3(x-2)= 4 (-x + 3)
d) 5(x + 1)-3 (x+2) = 0
f) 4(x + 5) + 3 (x +5)= 21
h) 8 (x-1) = 8 -4(2x - 3)​

Answer 1

Resposta:

B) 3x-6=-4x+12 =D  3x +4x =12 +6 =D 7x =18  =D x=18/7

D) 5x+5 -3x-6 =0  =D 2x -1 =0  =D 2x = 1  =D x=1/2

F) 4x+20 + 3x + 15 = 21 =D 4x+3x = 21- 20 -15 =D 7x = -14 =D x=-14/7

h) 8x-8 = 8 - 8x + 12 =D 8x+8x = 8+8+12 =D 16x=28 =D x=28/16 (simplificar) =D x=14/8 (simplifica por 2 denovo) x=7/4

Explicação passo-a-passo:

Answer 2

Explicação passo-a-passo:

B) 3(x-2)=4(-x+3)

3x-6= -4x+12

3x+4x=12+6

7x= 18

x= 18/7

d) 5(x+1)-3(x+2)=0

5x+5-3x-6=0

5x-3x=0-5+6

2x= 1

x=1/2

f) 4(x+5) +3(x+5)=21

4x+20+3x+15=21

4x+3x=21-20+15

7x= 16

x= 16/7

h) 8(x-1) = 8-4(2x-3)

8x-8= 8-8x+12

8x+8x= 8+12+8

16x= 28

x= 28/16

28/16 simplifica dividindo por 4= 7/4