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# John L.

## Get Ready for a Career in the Sciences!

### San Jose, CA (95132)

15 miles
Hourly fee
\$60.00

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## John's Resources

Any number between 6 1/2 and 7 1/2 rounds to 7.  Also, 6 1/2 itself rounds to 7.

Christina, you have two variables, x and y, but only one equation.  You cannot solve for both x and y unless you have a second equation. You can simplify the equation that you have, a bit: x - 4y = 17 - 3x + 12y  (combine the constants) x = 17 - 3x + 16y  (add...

Turn the word problem into an equation.  Call the unknown number x. The square of that number is x2. The square of 5 more than that number is (x+5)2. The sum of those two quantities, x2 + (x+5)2, equals 157. OK, let's solve it. x2 + (x+5)2...

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(ex: algebra, chemistry)