Scelta multipla
Use the elimination method to solve the following system of linear equations.
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5. Systems of Linear Equations
Solving Systems of Linear Equations by Elimination
Scelta multipla
Determine if substitution or elimination would be more convenient to use for the system below.
A
Substitution
B
Elimination
Guida verificata passo dopo passo1
First, look at the system of equations: \(3x + y = -3\) and \(2y = -2x\).
Rewrite the second equation to isolate \(y\): divide both sides by 2 to get \(y = -x\).
Since \(y\) is already isolated in the second equation, substitution is convenient because you can directly substitute \(y = -x\) into the first equation.
Substitute \(y = -x\) into the first equation to get \(3x + (-x) = -3\).
Now, solve the resulting single-variable equation for \(x\), then use that value to find \(y\).
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