6u=3u+21 simplified please and thank you

What is the missing reason in step 5? linear pair postulategivendefinition of complementary anglescongruent complements theorem

Find the slope of the line below . enter your answer as a fraction or decimal. use a slash mark ( / ) as the fraction bar if necessary

The difference between the number of electoral votes for florida and north carolina is 12 votes. write and solve a subtraction equation to find a number of electoral votes for florida.