The answers to equations are their solutions
You plug the number back into the original equation. If you have a specific example, that would help.
It depends on what equations are given.
There are an infinite amount of answers to that question.
Area can be used to find lumens. There are specific equations that are used to find lumens and area can be included in these equations. Plug the numbers into the equations and the amount of lumens will be found.
The answers to equations are their solutions
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Number factors help find common denominators in fractions and reducing fractions. In algebra they are used to find the answers to higher level equations like quadratics.
On the very good chance that the person answering this question doesn't have lessons 17 and 18, it would help the question to be answered if you would write out the actual problems.
You plug the number back into the original equation. If you have a specific example, that would help.
Answer If they are not in the back of the book, then you can find the answers using your head or through the teacher's edition. only if you can get your hands on the teachers edition
It depends on what equations are given.
They are different ways to represent the answers of an equation
There are an infinite amount of answers to that question.
Area can be used to find lumens. There are specific equations that are used to find lumens and area can be included in these equations. Plug the numbers into the equations and the amount of lumens will be found.
They are equations that involve many steps to find the solution.
Any answers that are the same in the both tables are answers that for both equations. y=x is (1,1), 2,2), (3,3) ... y=x^2 is (1,1),(4,2)... (1,1) is in both lists.