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Mathematics 19 Online
OpenStudy (anonymous):

Mario has the following problem in his homework assignment. x − 12 = 3 What should Mario do first to solve for x?

OpenStudy (anonymous):

add 12 to both sides.

OpenStudy (anonymous):

x=15

OpenStudy (anonymous):

x-12+12=3+12

OpenStudy (anonymous):

thx

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