To solve, you must make one side of the equation equal to zero. We can do this by subtracting 3x on both sides of the equation.
<span>x^2 + 7x = 3x
</span> - 3x -3x
x^2 + 4x = 0.
Then we substitute the equation into the quadratic equation.

Where a = 1 b = 4 and c = 0

We first solve whats inside the square root.


Now we solve for -4 and 4.


Then divide both answer by 2

The division of any by zero is zero
So the answer are x = -4 and x = 0
Answer:
let the number of adult tickets = x
Then the number of student tickets = 3x
Total tickets x+3x = 416
4x = 416
x = 416/4
x = 104
Therefore the number of adult tickets sold is 104
Step-by-step explanation:
Answer:
x = 2
Step-by-step explanation:
In a vertical line, all x-coordinates are the same.
x = 2
Answer:
Step-by-step explanation:
QWERTYUIOPLKJHGFDFGHJK,MNBVCXZSDIIUYTREWHJHGFD