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Mathematics 35 Online
OpenStudy (anonymous):

What should be added to both sides of this equation to solve for the variable? 7 = -13 + d help me please.

OpenStudy (anonymous):

look at the sign in front of the constant (-13) how do you make it 0 do you add or subtract 13

OpenStudy (anonymous):

subtract

OpenStudy (anonymous):

7 = -13 +d +13 +13 d=21

OpenStudy (anonymous):

if you subtract 13 form -13 you get -26not 0 so you need to add 13

OpenStudy (anonymous):

so after you add what do you do next

OpenStudy (anonymous):

you get solution...go here http://www.twiddla.com/536745

OpenStudy (anonymous):

was it 7 or 1

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