In this lesson, we learn how to solve a system of equations by using substitution. The main goal of substitution is to find the value of one variable first, and in this case, we chose y. By substituting in the value of y into the second equation, we were able to solve for x. After finding the value of x, we plugged it back into the first equation to solve for y. The solution was the intersection of the two graphs and was written as the coordinate point of 0, 1.
Solve the system of equations by using substitution
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