For this case we have the following property of the sum:

What we need to know is that the name of this property is:
Identity property of the sum.
What this property establishes is:
Every number added to zero is equal to the same number.
Answer:
the number sentence show:
Identity property of the sum.
If you simplify the equation you get y= 3x+7 so m or the slope will be 3 and b or the y intercept is 7
Camron, let's recall that:
Any integer,
The answer should be 6.80
Do you need translation? mon dieû