What would you like help with?
Answer:
X=5
Step-by-step explanation:
3x+9 is twice of 12 (24). 24-9=15, and 3*5=15, so x=5.
Answer: 
Step-by-step explanation:
Given the following expression:

And knowing that:

We get:

Move the 3 to the left side of the equation:

Apply the Quadratic formula:

In this case:

Substituting values into the Quadratic formula, we get:
Answer:
3y + 5x = 0
Step-by-step explanation:
The slope of the line = (y2-y1) / (x2-x1) = (5-0)/(-6-(-3))
= 5 / -3 = -5/3
Using the point-slope form , the line that passes through the origin and parallel to this line is
y - 0 = -5/3(x - 0)
y = -5/3 x
Multiply through by 3:-
3y = -5x
5x + 3y = 0
Answer:I need points sorry
Step-by-step explanation: I. NEED. POINTS. sowwy.