Ask your own question, for FREE!
Mathematics 7 Online
OpenStudy (anonymous):

Solve the system by the substitution method 5x - 10y = 4 -10x + 20y = -8

OpenStudy (the_fizicx99):

Turn one of them into y = mx + b and then sub in y into the other equation

Can't find your answer? Make a FREE account and ask your own questions, OR help others and earn volunteer hours!

Join our real-time social learning platform and learn together with your friends!
Can't find your answer? Make a FREE account and ask your own questions, OR help others and earn volunteer hours!

Join our real-time social learning platform and learn together with your friends!