Question

Solve:
1. 8y - 4y = 20
3. 5y + 8 = 8y - 18
5. 8 - 7x = 13x + 8
7. 9 + m = 6m + 8 - m
9. 19x + 13 - 12x + 3 = 23
11. 6 - 5m - 1 + 3m = 0
13. 6(x + 4) = 36
15. 4(x - 2) = 12
17. 7(x - 2) = 2(2x - 4)
19. 21 - 3(b - 7) = b + 20​

Answer 1

Answer:

1.8y-4y=20

4y=20

y=20/4

y =5

Answer 2

Answer:

1) 8y - 4y = 20...

8y + - 4y = 20...

4y = 20

y = 20 /4 = 5...

2) 5y + 8 = 8y - 18

= 5y - 8y = -18 -8

= - 3y = - 26

= y = -26/-3

= y = 26/3...

3) 8 - 7x = 13x + 8

= 8-8 = 13x + 7x

= 0 = 20x

= x = 0/20

= x = 20....

4)9 + m = 6m + 8 -m...

= m + m - 6m = 8 -9

= 2m - 6m = -1

= - 4m = -1

= m = -1/ -4

= m = 1/4

5)rest are in the attachment