Malik solved this system of equations.
2 x + 4 y = 24. 5 x + y = 15.
As the first step,...
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Mathematics, 01.02.2021 21:40 tjyoder718
Malik solved this system of equations.
2 x + 4 y = 24. 5 x + y = 15.
As the first step, he decided to solve for x in the first equation because it has a small, even number for the coefficient. Jill told him there was a more efficient way. What reason can Jill give for her statement?
The variable y in the second equation has a coefficient of one so there will be fewer steps to the solution.
The variable x in the second equation has a coefficient of 5 so it will be easy to divide 15 by 5.
The variable y in the first equation is divisible by 2 so it will be the most efficient way to start.
The variable y in the first equation has a larger even number. When dividing by 4, the solution will be a smaller number.
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