



 
Hi Samantha, First of all let me rewrite the first equation 6x  y = 4. Add y to both sides to get 6x  y + y = 4 + y or 6x = y + 4. Now add 4 to each side to get 6x  4 = y. Hence the two lines have equations
A solution to this system of equations is a pair of numbers (x, y) that satisfy the equations. Hence if I knew the value x and substituted it into the two equations I would get the same valve each time, y. That is
Thus
Solve for x. Penny  


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