Answer:
4
Step-by-step explanation:
the answer is 4
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:)
Well, each pizza is cut into 10 slices, that means both pizzas are 10+10 slices, or 20 slices, then they ate 14 of those 20 slices.
so they ate 14 out of 20, or 14/20, which simplifies to 7/10.
Slope = (difference of y-coordinates)/(difference of x-coordinates) = (-7-8)/(-15-(-10)) = (-15)/(-25) = ⅖
Let $x be the cost of the bench, then $x+100 is the cost of the table
x+x+100=1000
2x=900
x=450
So the cost of the bench is $450
For this case we have the following equation:

We want to clear x:
For this we must follow a series of steps, the first consists of adding 4x to both sides of the equation to obtain:

In this way, the variable term remains on one side of the equation.
Thus, the first step will be:
Add 4x to both sides
Answer:
Option D