8th grade pre algerbra

Question

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i have a question and i have tried everything !
rember this is 8th grade math...
question- rewrite 6+7x2-5 so that it equals 21.

Guest Aug 22, 2012

Guest · Answer 1 · 2012-08-22T08:05:59

forget this...
i will get help at school

Guest · Answer 2 · 2012-08-23T09:46:05

The order of operations needs to be changed. What you currently have is 15, but tweak it to look like this:

(6+7)x2-5

and the answer will be 21