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how to work out solving multi step equations

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7d-12+2d+3=18

Apr 10th, 2015

7d + 2d - 12 + 3 = 18                combine the like terms

9d - 9 = 18                                add 9 to both sides

9d = 27                                    divide both sides by 9

d = 3

Apr 10th, 2015

thanks 

Apr 10th, 2015

you are welcome.

Apr 10th, 2015

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