rebekahrocha75 rebekahrocha75

08-03-2017
Mathematics

Answered

HELP

x + 2y = -6

3x + 8y = -20

Solve this system using elimination. Write your answer as an ordered pair.

Verified Answer :

texaschic101 texaschic101

08-03-2017

x + 2y = -6.......multiply by -3
3x + 8y = -20
-----------------
-3x - 6y = 18 (result of multiplying by -3)
3x + 8y = -20
----------------add
2y = -2
y = -2/2
y = -1

x + 2y = -6
x + 2(-1) = -6
x - 2 = -6
x = -6 + 2
x = -4

solution is (-4,-1)

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