Mathematics

Olive Blackburn

5 May, 18:44

Bob has some 10 lb weights and some 3 lb weights. Together, all his weights add up to 50 lb. If x represents the number of

3 lb weights and y represents the number of 10 lb weights which equation can be used to find the number of each type of

weight Bob has?

3x - 10y = 50

3x = 50 - 10y

50 + 10y = 3y

50 + 3y = 10y

+5

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