Can someone assist me with these questions

1. x=-2

2. 4(-2)+1=3 ---> -8+1=3 ---> -7=3 ---> this is not a correct answer

3. x= .5 (or 1/2)

4. 4(1/2)+1=3 ---> 2+1=3 ---> 3=3 ---> this is a correct answer

5. Sometimes true

6. No, because if you use any other numbers for x, then the left side won't equal the right side

x/7.50 = 15

x= 7.50 / 15 divide

step-by-step explanation: