Question

3. Solve: 7x – 9 = 12
4. Solve: 8x = 20 + 3x​

Answer 1

1) 7x-9=12

7x=12+9

7x=21

x=21/7

x=3

2)8x=20+3x

20+3x-8x

20-5x=0

-5x=-20

x=20/5

x=4

....HOPE IT WILL HELP YOU....

Answer 2

Answer:

this is the answer

I hope you will understand my writing