01-02-2017
Mathematics

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What's 4x+2y=10

X-y=13

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mohsan573 mohsan573

01-02-2017

X=y+13 then put in above

4(y+13)+2y=10
4y+52+2y=10

6y=-42

divide by 6
y=-7

Now put in X=y+13
x=-7+13
x=6

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