# SOLUTION: Find values for m and b in the following system so that the solution to the system is (-3,4). 5x+7y=b mx+y=22 Please help!! Thanks so much!!!

Algebra ->  Algebra  -> Coordinate Systems and Linear Equations -> SOLUTION: Find values for m and b in the following system so that the solution to the system is (-3,4). 5x+7y=b mx+y=22 Please help!! Thanks so much!!!      Log On

 Ad: You enter your algebra equation or inequality - Algebrator solves it step-by-step while providing clear explanations. Free on-line demo . Ad: Algebra Solved!™: algebra software solves algebra homework problems with step-by-step help! Ad: Algebrator™ solves your algebra problems and provides step-by-step explanations!

 Linear Solvers Practice Answers archive Word Problems Lessons In depth

 Question 74292: Find values for m and b in the following system so that the solution to the system is (-3,4). 5x+7y=b mx+y=22 Please help!! Thanks so much!!!Answer by funmath(2925)   (Show Source): You can put this solution on YOUR website!Find values for m and b in the following system so that the solution to the system is (-3,4). 5x+7y=b mx+y=22 : Let x=-3 and y=4 in the first equation. 5(-3)+7(4)=b -15+28=b 13=b : Let x=-3 and y=4 in the second equation. m(-3)+4=22 -3m+4=22 -3m+4-4=22-4 -3m=18 -3m/-3=18/-3 m=-6 : Happy Calculating!!!!