1. Line 3 is the first error. In order to get rid of the 25, you add it to both sides, not subtract. So, your answer is B.
2. Line 1 because it says in the question "4 less than a number" and the equation adds 4, instead of subtracting. Your answer is A.
3. Line 4. To get rid of the 6 in front of 6x, you have to divide by it, but instead they multiply. So, your answer is C.
4. To solve this, you will use the distributive property first:
[tex]4(x-3)=16[/tex]
Turns into:
[tex]4x-12=16[/tex]
Get rid of the 12:
[tex]4x=28[/tex]
Divide by 4:
[tex]x = 7[/tex]
Your answer is B.
5. You have to set it up:
[tex] \frac{x}{3} = -11+4 [/tex]
Just solve for x:
[tex] \frac{x}{3} = -7 [/tex]
Multiply both sides by 3 to isolate x:
[tex]x = -21[/tex]
Your answer is B.
Hope this helps, if any step doesn't make sense, feel free to tell me!
