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Solve each system by substitution. 3u+8=4v 24v=6-3u
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High School Teacher
To use substitution, you solve one of the equations for one of the variables; then you substitute the expression for that variable into the other equation.
If we solve the first equation for v we get :
Now substitute `3/4u+2` in place of v in the second equation:
The solution to the system is `u=-2,v=1/2`
Checking we get `3u+8=3(-2)+8=2=4(1/2)=4v`
Posted by embizze on November 4, 2012 at 6:14 PM (Answer #1)
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