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Jun Wei had 40 more marbles than Joe at first. After joe had given Jun Wei 10 marbles, Jun Wei had 5 times as many marbles as Joe. How many marbles did joe have at first?

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Answer to a math question Jun Wei had 40 more marbles than Joe at first. After joe had given Jun Wei 10 marbles, Jun Wei had 5 times as many marbles as Joe. How many marbles did joe have at first?

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x = Jun Wei's marbles y = Joe's marbles x = y + 40 (x + 10) = 5(y - 10) (y + 40 + 10) = 5(y - 10) y + 50 = 5y - 50 y - 5y = -50 - 50 -4y = -100 y = -100/-4 y = 25 answer: 25

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Jun Wei had 40 more marbles than Joe at first. After joe had given Jun Wei 10 marbles, Jun Wei had 5 times as many marbles as Joe. How many marbles did joe have at first?

Answer to a math question Jun Wei had 40 more marbles than Joe at first. After joe had given Jun Wei 10 marbles, Jun Wei had 5 times as many marbles as Joe. How many marbles did joe have at first?

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