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55+7x+4x=180 what is x ?
 Feb 3, 2014
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janeenaj25:

55+7x+4x=180 what is x ?



well +7x+4x = +11x ( the sign always belongs to the thing behind them, with plus this is easy, with minus you have to be careful.)
55 is really +55

so we have
+55+11x = 180

Now, you want the lots of x on their own. So you need to get rid of the +55 , you will have to take 55 off both sides

55+11x-55 = 180-55

11x = 125
Now to get the x by itself, you have to divide both sides by 11
You can finish it
 Feb 3, 2014

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