Mathematics, 08.12.2020 04:50 julialombardo53

If you were to solve the following system by substitution, what would be the best variable to solve for and from what equation?
3x + 6y=9
2x - 10y=13
O A. x, in the second equation
O B. y, in the second equation
C. x, in the first equation
O D. y, in the first equation

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If you were to solve the following system by substitution, what would be the best variable to solve...