find x when,
2x=128
2x=128
/2 /2
x=128
/2
x=64
then check your answer by doing the following
if x=64, then what is 2x?
2(64)=? or 2 * 64=? or 2 x 64=?
2 times 64 equals 128!
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x = 64 64 + 64 = 128
I believe the converse is: if 2x equals 6 then x equals 3 inverse: if x doesn't equal 3 then 2x doesn't equal 6 contrapositive: if 2x doesn't equal 6 then x doesn't equal 3
2x-3 = x+5 2x-x = 8 x = 8
x=1
2x=5 x=5/2 x=2.5