The answer is “x”. “x” represents the missing number in the problem.
Example:
16+x=20
The missing number, 4, would be represented as x. Hope this helps!
Answer:
y = -7x
Explanation:
Take two points from table: (-4, 28), (-3, 21)
Find slope:


Now find equation:





Y=mx+b
m=slope
b=yint
slope=5/6
ying=-3
equation is y=5/6x-3
You add half of the coefficient of x and square it.
What you do on one side,you must do it on the other.