Math Problem Statement
Use the method of substitution to solve the following system of equations. If the system is dependent, express the solution set in terms of one of the variables. Leave all fractional answers in fraction form.
{−3x−y=40−x=−12 Answer Keyboard Shortcuts Selecting an option will display any text boxes needed to complete your answer.
Solution
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Math Problem Analysis
Mathematical Concepts
Algebra
Systems of Linear Equations
Substitution Method
Formulas
Substitution method: Solve one equation for one variable and substitute it into the other equation
Theorems
Linear system solutions: unique solution, infinite solutions (dependent), or no solution (inconsistent)
Suitable Grade Level
Grades 8-10
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