Question

1) RESOLVA AS SEGUINTES EQUAÇÕES
a) 4x-1 =3(x-1)
b) 3(x - 2) = 2x - 4
c)2(x - 1) = 3x + 4
d) 3(x - 1) - 7 = 15
e) 7 (x-4) = 2x - 3
f) 3 (x-2) = 4(3 - x)
g) 3 ( 3x - 1) = 2 ( 3x + 2)
h) 3 (2x - 1) = -2 ( x + 3)
i) 5x - 3(x+2) = 15
j) 2x + 3x + 9 = 8(6 -)
k) 4(x+ 10) -2(x - 5) = 0
l) 3 (2x + 3) - 4(x-1) = 3
m) 7 (x-2)=5 (x+3)

pfvrrrrrrrr
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Answer 1

Resposta:

a) 4x-1 =3(x-1)

4x-1=3x-3

4x-3x= -3

x= -3

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

3x-6=2x-4

3x-2x= -4+6

x=2

c)2(x - 1) = 3x + 4

2x-2=3x+4

2x-3x=4+2

-x=6

d) 3(x - 1) - 7 = 15

3x-3-7=15

3x=15+3+7

3x=25

x=25/3

e) 7 (x-4) = 2x - 3

7x-28=2x-3

7x-2x= -3+28

5x=25

x=25/5

x=5

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

3x-6=12-4x

3x+4x=12+6

7x=18

x=18/7

g) 3 ( 3x - 1) = 2 ( 3x + 2)

9x-3=6x+4

9x-6x= 4+3

3x=7

x=7/3

h) 3 (2x - 1) = -2 ( x + 3)

6x-3= -2x-6

6x+2x= -6+3

8x= -3

x= -3/8

i) 5x - 3(x+2) = 15

5x-3x-6=15

5x-3x= 15+6

2x=21

x=21/2

j) 2x + 3x + 9 = 8(6 -) ?

k) 4(x+ 10) -2(x - 5) = 0

4x+40-2x+10=0

2x+48=0

2x=48

x=48/2

x=24

l) 3 (2x + 3) - 4(x-1) = 3

6x+9-4x+4=3

6x-4x=3-9-4

2x= -10

x= -10/2

x= -5

m) 7 (x-2)=5 (x+3)

7x-14=5x+15

7x-5x= 15+14

2x=29

x= 29/2