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When you subtract 22 from a number and the result is doubled, the answer is 6 more than the original number. What is the number?
You have to write two equation: 'substract 22 from a number' [tex]X-22=Y[/tex] and: 'the result is doubled, the answer is 6 more than the original number' [tex]2*Y=X+6[/tex]
then you change 'Y' in 2nd equation for left side of 1st equation: [tex]2*(X-22)=X+6[/tex] count it and you get: [tex]2X-44=X+6[/tex] This means that X=50 The original number is 50.
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