Question

7 (x - 5 ) = 3 (x + 1)

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

2 (x + 1) - (x = + 1) = 0

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

Answer 1

Resposta:

a)7(x-5)=3(x+1)

7x-35=3x+3

7x-3x=3+35

4x=38

x=38/4

x=9.5

b) 3x-6= -4x+12

3x+4x=12+6

7x=18

x=18/7

x=2.57

c) 2x +2 -x+1=0

x=-1-2

x= -3

d)5x+5-3x-6=0

2x-1=0

x=1/2 ou 0.5

e)13+4(2x-1)=5(x+2)

13+8x-4=5x+2

8x-5x=2+4-13

3x=7

x=7/3

x=2.333333

f) 4x+20+3x+6=21

7x=-1+6

x=5/7

x=0.7

g)2x+10-15+3x=10

5x=-10+15+10

X=15/5

X=3

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

8x-8=8-8x+12

x=12

Explicação passo a passo: