if {x+y}/{x-y}= 4/3 and x≠0, then what percentage (to the nearest integer) of x+3y is x–3y ? Pick one:	A) 40%	B) 30%	C) 55%	D) 36%	E) None of these
Explanation :   =&gt;(x+y)/(x-y)=4/3.   =&gt;(x/y)+1/(x/y)−1=4/3.   Cross-multiplying this equation yields   =&gt;3x/y+3=4x/y−4.   Solving for x/y yields x/y=7.   Now, the percentage of x+3y the expression x−3y makes is   =&gt;x−3y /x+3y∗100   Dividing both the numerator and the denominator of the expression by y, gives:-   =&gt;((x/y)−3/(x/y)+3))×100.   =&gt;((7−3)/(7+3))×100.   =&gt;40%.   40%nswer : 40%
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if {x+y}/{x-y}= 4/3 and x≠0, then what percentage (to the nearest integer) of x+3y is x–3y ?