# subtraction equation

explain j-(8)=5 also did you use the rule of subtraction of signed number to get the answer

### Comments for subtraction equation

 Jan 19, 2011 Subtraction Equation by: Staff The question: explain j-(8)=5 also did you use the rule of subtraction of signed number to get the answer The answer: j - (8) = 5 you could rewrite this equation in a couple of different ways j - (+8) = (+5) or j - 8 = 5 it is not necessary to use a signed number, but it might be easier to understand to arrive at the solution algebraically, ad (+8) to each side of the equation j - (+8) = (+5) j - (+8) + (+8) = (+5) + (+8) j + 0 = (+5) + (+8) j = +13 the final answer: j = +13 check the solution by substituting (+13) for j j - (+8) = 5 (+13) - (+8) = 5 5 = 5 Since 5 does equal 5, the solution is correct Thanks for writing. Staff www.solving-math-problems.com

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