You can
put this solution on YOUR website! .
solve by substitution y=2x+1 the second part of the equation is 3x+y=11
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Hello, they just made part of the work for you.
They just expressed "y" via "x" in the first equation: y = 2x+1.
All you need to do is to substitute this expression into the second equation, as it follows:
3x + (2x+1) = 11.
Now simplify and solve this single equation for "x".
