solve the following by cross multiplication method
x/2+21(x/3-x/7)=x+27
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Cross multiplication method is deleted by cbse
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Answer:
x=54/7
Step-by-step explanation:
x/2+21(x/3-x/7)=x+27
=>x/2+21[(7x-3x)/21]-x=27
=>x/2+21(4x/21)-x=27
=>x/2+4x-x=27
=>(x+8x-2x)/2=27
=>7x/2=27
=>7x=54
=>x=54/7
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