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To solve this system of equations using substitution, what could be substituted in place of y in the first equation?
4x = 5 - 2y
y-2x = 7

A.7-2x
B. 4x– 5
C.5-4x
2
D. 2x + 7

Respuesta :

charlmagallano
looking at second equation.. you must put it in y=Mx+b form and so you must add 2x from both side leaving you with 7 +2x or in this case 2x+7

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