Quantative Reasoning: Systems of Linear Equations
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Solve the system of equations
x + y = 4
x - y = -7
Assignment Expectations:
Define a system of equations.
Solve systems of equations with two and three variables.
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Solution Summary
This solution shows a step-by-step algebraic solution to two linear equations, where the unknown variables are x and y. The solved values of x and y represent the point, where the two linear equations intersect.
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Dear Student:
In general, a system of equations is a collection of two or more equations, each containing one or more variables. For instance, in this case you have two equations, each containing the variables x and y. Both equations are linear equations, that is, there are no variables squared (which would make it a parabola).
x + y = ...
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