You can put this solution on YOUR website! Let X represent the unknown number.
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Half of that unknown number is therefore:
.
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Seven less than that is:
.
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And this is to equal 34. Therefore, in equation form this is:
.
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Get rid of the -7 on the left side by adding 7 to both sides. On the left side when you
add +7 to the -7 the two cancel each other out and after adding 7 to both sides the equation
becomes:
.
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Solve for X by multiplying both sides of this equation by 2 and you get:
.
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Check by taking half of 82 then subtracting 7 and you will find that you do get 34 for the
answer.
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Therefore, you can say the unknown number you are looking for is 82.
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Hope this helps you to understand the problem.
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