Write the fraction 12 over 15 in its simplest form

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

[10 points, algebra 2]according to my answer key the restrictions are -1 and 4. but why not positive 1?

Examine the two-step equation. − 7 4 + x 4 = 2 which property of operations allows you to add the same constant term to both sides? amultiplication property of equality bdivision property of equality caddition property of equality dsubtraction property of equality