Math

Solve for both systems: 6y+z=126 and y + 9z = 127

Asked by AnneS2 on 20 Sep 05:56

Last updated by anonymous on 21 Sep 11:13

1 Answers

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Answered by CherieS on 21 Sep 11:13

y + 9z = 127-9z

y = 127-9z

6y+z=126

6(127-9z)+z=126

6(127) (6)(-9z)+z=126

762-54z+z=126

762-53z=126

762-53z-762=126-762

-53z=-636

-53z/-53=-636/-53

z=12

y = 127-9z

y = 127-9(12)

y = 127-108=19