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4y=x 3x-y=70 how to solve this problem using substitution
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4y=x 3x-y=70
how to solve this problem using substitution

User Yoann Hercouet
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1 Answer

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4y=x
3(4y)-y=7012y-y=70
11y=70
y=70/11
4(70/11)=x
280/11=x
User Deepak Kaku
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7.4k points
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