NEEDHAIR NEEDHAIR
  • 18-02-2020
  • Mathematics
contestada

Solve the system of linear equations using elimination.

−2x − y = 3
−9x − y = 17

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js338929
js338929 js338929
  • 18-02-2020

-2×-y=3-9×-y=17

=2×+9×=1y+1y=17+3

11×=2y=20

11=y=20÷2

11y=10

y=10/11

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