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OpenStudy (anonymous):
10w + 3z = 29 when z = 3
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OpenStudy (anonymous):
substitute 10w + 3(3) = 29 10w + 9 = 29 subtract 9 10w +9 -9 = 29 - 9 10w = 20 divide by 10 w = 2
OpenStudy (anonymous):
wow
OpenStudy (anonymous):
but why did u divdd by 10
OpenStudy (anonymous):
divide both sides by 10 to isolate w on left-wide 10w/10 = 20/10 w = 2
OpenStudy (anonymous):
o ok
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