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OpenStudy (anonymous):
A number decreased by 13 is equal to 7, is my method right? 13-x=7
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jimthompson5910 (jim_thompson5910):
"decreased by 13" means you're subtracting 13 from some unknown number x So it's really x-13 This means that the equation is x-13 = 7
OpenStudy (anonymous):
ha okay thank you very much!(:
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