Question 395405
I'm assuming the equation is {{{(15-x)/45=15/75}}}



{{{(15-x)/45=15/75}}} Start with the given equation.



{{{75(15-x)=15*45}}} Cross multiply



{{{75(15-x)=675}}} Multiply



{{{1125-75x=675}}} Distribute.



{{{-75x=675-1125}}} Subtract {{{1125}}} from both sides.



{{{-75x=-450}}} Combine like terms on the right side.



{{{x=(-450)/(-75)}}} Divide both sides by {{{-75}}} to isolate {{{x}}}.



{{{x=6}}} Reduce.



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Answer:


So the solution is {{{x=6}}} 



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