Well, if we know y, we can now solve for x. x is equal to 9 minus 2y. So let's do that. x is equal to 9 minus 2 times y, 2 times 7. Or x is equal to 9 minus 14, or x is equal to negative 5. So we've just, using substitution, we've been

Solve by Substitution Calculator. Step 1: Enter the system of equations you want to solve for by substitution. The solve by substitution calculator allows to find the solution to a system of two

Clear up math questions

Math is often viewed as a difficult and boring subject, however, with a little effort it can be easy and interesting.

Clear up math tasks

If you're struggling with math, there are some things you can do to clear up the confusion.

Deal with math tasks

Math is all about solving equations and finding the right answer.

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Jordan Hogan

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John Fitzgerald