How do you do the problem 8/2/4-3/1/9

Adriver from the university of florida women’s swimming and diving team is competing in the in ncaa zone b championships

Explain why the factor 1.5 is broke. into two numbers in the model.

John used linear combination to solve the system of equations shown. he did so by multiplying the first equation by -3 and the second equation by another number to eliminate the x-terms. what number did jonas multiply the second equation by? 4x-6y=23x+5y=11