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Question Number 116700 by bemath last updated on 06/Oct/20

$$\mathrm{How}\mathrm{many}\mathrm{positive}\mathrm{integral}$$$$\mathrm{solutions}\mathrm{does}3\mathrm{x}+5\mathrm{y}=300\mathrm{have}?$$

Answered by mr W last updated on 06/Oct/20

$$x=5p$$$$y=3q$$$$p+q=20$$$$p=1,2,...,19\Rightarrow 19solutions!$$

Commented by bemath last updated on 06/Oct/20

$$\mathrm{yes}...\mathrm{gave}\mathrm{kudos}$$

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