Question

01. Resolva as seguintes equações, sendo U-Q.
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) 7 (x-2) = 5 (x+ 3)
i) 3 (2x - 1) = -2 (x + 3)
j) 5x - 3 (x + 2) = 15

Gente me ajuda meu professor passou isso é um trabalho e eu na estava em sala de aula.​

Answer 1

a) 4x - 1 = 3 (x - 1)  --->x=4

b) 3 (x - 2) 2x - 4   --->x=10

c) 2 (x- 1) = 3x + 4   --->x=-5

d) 3 (x - 1) - 7 = 15   --->x=25/3

e) 7 (x-4) 2x - 3   --->x=5

f) 3 (x - 2) = 4 (3 - x)  ---> x=18/7

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

h) 7 (x-2) = 5 (x+ 3)   --->x=29/2

i) 3 (2x - 1) = -2 (x + 3)   --->x=-8/3

j) 5x - 3 (x + 2) = 15  --->x=21/2

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

4x -1 = 3x=3

4x -3x =3+1

x=4

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

3x -6 =2x-4

3x-2x =6+4

x=10

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

2x-1 = 3x+4

-1-4=3x-2

-5=x

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

3x-3-7=15

3x -10=15

3x=15+10

3x=25

x=25/3

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

7x-28=2x-3

7x -2x=28-3

5x=25

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=1

x=1/3

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

7x -14 = 5x + 15

7x-5x=15+14

2x=29

x=29/2

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

6x-3=-2x-6

6x+2x=-6+3

8x=-3

x=-8/3

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

5x-3x-6=15

2x=15+6

2x=21

x=21/2