Explain, in complete sentences, how you would use the substitution method to solve the following system of equations. Provide the solution to the system.
5x - y = -1
7x - 3y = 13 (4 points)

Question

Explain, in complete sentences, how you would use the substitution method to solve the following system of equations. Provide the solution to the system.
5x - y = -1
7x - 3y = 13 (4 points)

anonymous · Answer

i would solve the first equation for $y$ by writing 
$$5x+1=y$$ 
then replace $y$ in the second equation by $5x+1$ to get 
$$7x-3(5x+1)=13$$ 
this gives on equation in one variable
i imagine you can solve this one, but if you need help let me know

anonymous · Answer

"one equation"
i will leave the complete sentences up to you
once you have found $x$ you can find $y$ easily, since 
$$y=5x+1$$

anonymous · Answer

i didnt find y...