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Mathematics 23 Online
OpenStudy (anonymous):

a Student solved the equation -5x+2x+2=20-6x and got x=6. His work shown below is his check for this problem Which statement best applies to the work shown? -5(6)+2(6)+2=20-6(6) -30+12+2=20-36 -16=-16 a. his check does not work, thus x=6 b. the work in his check is all correct, thus x=-16 c. the work in his check is correct, thus x=6

OpenStudy (saifoo.khan):

c. the work in his check is correct, thus x=6

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