Answer:

Step-by-step explanation:

<em>Replace it with y</em>

<em>Exchange the values of x and y</em>

<em>Solve for y</em>

<em>Subtracting 1 from both sides</em>

<em>Dividing both sides by 2</em>

<em>Replace it by </em>
So,

Answer:
-6.25 tI am not sure if this can help you but this is what I got
3x+25=90
-25=-25
3x=65
x=26.6666666666666666666666
I hope this helps!
Answer:
should have 3.5 for the first one ::))
Step-by-step explanation:
<span>The first two cuts can intersect at only 1 pt regardless of where they are placed.
So 4 pieces there.
The last cut can only intersect each other cut a 1 pt, regardless of placement. As long as the intersection is different than the first intersection, then you will have 7 pieces.</span>