5x-4y=-21 and -2x+4y=18 Solve each by using elimination

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5x-4y=-21 and -2x+4y=18

Solve each by using elimination
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2 Answers

add them together and get:

3x=-3

x= -1

5(-1) -4y=-21

-5 -4y=-21

-4y=-16

y=4
by Level 5 User (12.9k points)
–2x + 3y = 14
by

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