Asked by aviel
use linear combinations to solve these system.
3x+2y=22
9x-8y=-4
3x+2y=22
9x-8y=-4
Answers
Answered by
chica
-9x-6y=-66 Multiplied top equ. by -3
9x-8y=-4 Cancel x's
-14y=-70
y=5
Then plug in the y to find the x in an equation. Be sure to check by plugging both in after.
9x-8y=-4 Cancel x's
-14y=-70
y=5
Then plug in the y to find the x in an equation. Be sure to check by plugging both in after.
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