Question

Q1. x+9=20=> X = 11
Q2.t-19=5=> t = 24
Q3. 2f + 3 = 7
Q4. 6x+1=19
Q5. f÷11=6
Q6. 5x-3=4x
Q7. x/7 = 2.7
Q8. 10-x =4
Q9. n/5 + 3 = 17

Please send calculations,

Answer 1

1. x+9=20
    x=20-9=11

2. t-19=5
    t=5+19=24

3. 2f+3=7
    2f=7-3=4
    f=4/2=2

4. 6x+1=19
    6x=19-1=18
    x=18/6=3

5. f/11=6
    f=6*11=66

6. 5x-3=4x
    5x-4x=3
    x=3

7. x/7=2.7
    x=2.7*7=18.9

8. 10-x=4
     x=10-4=6

9. n/5+3=17
    n/5=17-3=14
    n=14*5=70

Hope this helps