Audrey111 Audrey111

15-01-2017
Mathematics

contestada

how do you isolate x in 1/2x+1/5y=9

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maddayy maddayy

15-01-2017

You would subtract 1/5y, and multiply both sides by 2 (1/2's reciprocal)

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dross50 dross50

15-01-2017

subtract 1/2x from each side
1/5y=9-1/2x
subtract 9 from each side
1/5y-9=-1/2x
multiply each side by 2
2/5y-18=-x
multiply each side by -1
-2/5y+18=x

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