algebra ll
posted by Anonymous, .
the first equation of the system is mutiplied by 2,by what number would you mutiply the second equation to eliminate the x variable by adding. first:6x  5y =21 4x+7y= 15 when i did the promblem i got 2 answers 3 or 2 im not sure which one

2*6 = 12
3*4 = 12
12+ (12) = 0