You can solve the system of equations with three variables using the substitute method, or using matrix operations.
solve system equation using addition method 3x-y=9 2x+y=6
To solve a system of equations, you need equations (number phrases with equal signs).
Awnser = Start paying attention in class.
y=7x-8 42x-48=6y
The answer depends on whether they are linear, non-linear, differential or other types of equations.
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Solve the problem using the + sign for the variable. Then solve the problem using the - sign for the variable. Report your answer as the answer that you got using + or the answer that you got using -.
A system of equations is two or more equations that share at least one variable. Once you have determined your equations, solve for one of the variables and substitute in that solution to the other equation.
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