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OpenStudy (anonymous):
2X-Y if X=2 and Y=-11
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OpenStudy (anonymous):
I got 15 is this right?
OpenStudy (katrinakaif):
Lets's substitute first : 2x - y 2(2) - (-11) 4 + 11 15
OpenStudy (katrinakaif):
Yes! Good job =)
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