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3 votes
How do you isolate x in 1/2x+1/5y=9

2 Answers

4 votes
You would subtract 1/5y, and multiply both sides by 2 (1/2's reciprocal)
User Nils Schmidt
by
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4 votes
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
User Mohit Lakhanpal
by
8.2k points

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