Solve by Substitution -x+3y-3=0 , x-3y=3
Problem
Solution
Isolate a variable in the second equation. We can add
3*y to both sides to solve forx
Substitute the expression for
x into the first equation.
Distribute the negative sign through the parentheses.
Combine like terms on the left side of the equation.
Interpret the result. Since the variables have canceled out and the resulting statement
−6=0 is false, the system of equations is inconsistent.
Final Answer
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