Assuming that you mean to put n instead of 5, this is demonstrating The Identity Property.
The identity property is the property that states that by adding 0 to a number, you don't change the value. For example, 510 + 0 = 510.
Same homework I have.super hard!!!
I’ll keep it simple for you so you can actually learn. “Bi” means two, everything that has two terms is a binomial. And the “tri” means three, so three terms. And well the one left monomial is one term.
Meaning 10xyz is one term, which means it’s a Monomial.
8x^2 + 0.25 two terms so binomial
In the form of algebra substitution is the method used in simultaneous equations.
E.g y=2x+5 and y=5x-1
Solve for x and y
Since we know two examples of what y is, we can substitute one y in replacement of the other to get.
2x+5=5x-1 then we solve for x to get:
x = 2 sub this back in to get y = 2(2) +5
y = 9