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Write a paragraph proof that justifies the conditional statement “If 15 – 2x = 6 + x, then x =

Answer 1

15-2x=6+x
or, 15-2x-6 = 6+x -6 [Adding -6 on both sides]
or, 9-2x = x
or, 9 -2x+2x=x+2x [Adding 2x on both sides]
or, 9 = 3X
or 3x=9 [ Commutative rule]
or 3x/3=9/3 [Dividing both sides by 3]
or, x= 3


modify the reasons I gave in the brackets to make the paragraph.