Two step equations example
2x + 2 = 10
Inverse operation. What is the opposite of +2?
-2 is!
Apply that to both sides to balance it
2x + 2 = 10
- 2 -2
2x = 8
2x/2 = 8
We divided because it is the opposite of multiplication.
2x/2 = 8/2
x = 4
Answer: x = 4
Irrational hope this helps!!
You have to put the equations into slope intercept form/y=mx+b.
Point slope form is

Since we have to write the equation of a perpendicular line we will have to use the slope that is opposite and reciprocal.


Hope this helps :)
Answer:
r = 12
Step-by-step explanation:
From the figure attached,
QP is a tangent to the circle O at the point P.
Therefore, by the property of tangency,
OP ⊥ QP
By applying Pythagoras theorem In right triangle QPO,
(Hypotenuse)² = (Leg 1)² + (Leg 2)²
(OQ)² = (OP)² + (PQ)²
(25 + r)² = (35)² + r²
625 + r² + 50r = 1225 + r²
50r = 1225 - 625
50r = 600
r = 12
Therefore, r = 12 units is the answer.