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OpenStudy (anonymous):
Solve each linear system in 2D (1) x+y=8 (2) x-y=13
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jimthompson5910 (jim_thompson5910):
Hint: Add the equations to get x+y = 8 x-y = 13 ---------- 2x+0y = 21 2x = 21 x = ??? Now use this solution for x to get y
OpenStudy (anonymous):
Thanks !
jimthompson5910 (jim_thompson5910):
np
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