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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True. To solve a three variable system of equations you can use a combination of the elimination and substitution methods.
yes
Isolating a variable in one of the equations.
The first step is usually to solve one of the equations for one of the variables.Once you have done this, you can replace the right side of this equation for the variable, in one of the other equations.
2x+7y=29 x=37-8y