2i square-root 3+3 or negative 2i square root 3+3
The correct answer is A or you could do D either one technically correct
If by function form you're referencing a y= equation then this is how you do it.
You want the y variable to be alone on its own side, so our first step is to subtract that ugly 5x from the left side.
That gives you -y=-5x-1
Now, we never want the y to be negative so we fix this by multiplying both sides by negative one which will cancel out that negative.
We are then left with y=5x+1
6r+7=13+7r
Move 7r to the other side. Sign changes from +7r to -7r.
6r-7r+7=13+7r-7r
6r-7r+7=13
-r+7=13
Move +r to the other side. Sign changes from +7 to -7.
-r+7-7=13-7
-r=6
Multiply by -1 to get positive and for 6
-r(-1)=6(-1)
r=-6
Answer: r=-6