Mathematics, 18.03.2021 21:40, zuleiny38

Earl solved a system of equations using substitution. Did he do it correctly? How doyou know? If he did not, find his error and solve the system correctly. x + y = 3
2y - 3x = 16

Earl's solution:
2(3-x)=3x+16
6-x-3x=16
6-4x=16
6-6-4x = 16-6
-4x=10
-4x/4 = 10/-4
x=-2.5 y=5.5

Answers: 2

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