Question

1) y - 8 + 5y = -3 +2y + 7
2) 2.(3 - y) + 7.(2 - y) = 15 - 4y  
3) 10x - 8 - 2 = 7x – 4
4) 2x + 14  = 5x – 1
5) x + 4.(x - 1) = 9 - 2.(x + 3)
6) -10 + 4 - 2x = -4x – 7
7) x - (x + 1) = 12 - (3x - 2)
8) 2x + 1 = 3 – 3x + 16
9) 5x + 3 = 4x + 18
10) 11x + 12 = 9x + 13
11) 11x + 17 = 10x + 13
12) 9y – 2 = 7y
13) 5x = 4x + 8
14) 3x – 1 = 8
15) 5y = 3y + 8
16) 2x = 24

Answer 1

Resposta:

1) y - 8 + 5y = -3 +2y + 7

y+5y-2y=-3+7+8

6y-2y=10+8

4y=18

y=18/4

y=4,5

2)2.(3 - y) + 7.(2 - y) = 15 - 4y

6-2y+14-7y=15-4y

-2y-7y+4y=15-6-14

-9y+4y=-5

-5y=-5

y=-5/-5

y=1

3)10x - 8 - 2 = 7x – 4

10x-7x=-4+8+2

3x=6

x=6/3

x=2

4) 2x + 14  = 5x – 1

2x-5x=-1-14

-3x=-15

x=-15/-3

x=5

5) x + 4.(x - 1) = 9 - 2.(x + 3)

x+4x-4=9-2x-6

x+4x+2x=9-6+4

7x=7

x=7/7

x=1

6) -10 + 4 - 2x = -4x – 7

-2x+4x=-7+10-4

2x=-1

x=2/-1

x=-2

7) x - (x + 1) = 12 - (3x - 2)

x-x+1=12-3x+2

x-x+3x=12+2-1

3x=13

x=13/3

x=4,3

8) 2x + 1 = 3 – 3x + 16

2x+3x=3+16-1

5x=17

x=17/5

x=3,4

9) 5x + 3 = 4x + 18

5x-4x=18-3

x=15

10) 11x + 12 = 9x + 13

11x-9x=13-12

2x=1

x=1/2

11) 11x + 17 = 10x + 13

11x-10x=13-17

x=-4

12) 9y – 2 = 7y

9y-7y=2

2y=2

y=2/2

y=1

13) 5x = 4x + 8

5x-4x=8

x=8

14) 3x – 1 = 8

3x=8+1

3x=9

x=9/3

x=3

15) 5y = 3y + 8

5y-3y=8

2y=8

y=8/2

y=4

16) 2x = 24

x=24/2

x=12

ESPERO TER AJUDADO!!! MELHOR RESPOSTA PF