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I had an interesting question from a student this past weekend. The difference between a hypothesis and a theory. In simple terms, a hypothesis is an educated guess. It's an assumption that needs to be proven. A theory on the other hand, is a hypothesis
that has been tested many times. With numerous testing, it is accepted as a true statement. Until someone proves it is untrue, the statement...
4x-(2-3x)-5 can be written as 4x-1(2-3x)-5
Use the distributive property. NOTE: Distributive property helps to get rid of the parenthesis. a(b + c) = ab + ac
Multipy the negative 1 into what is inside the parenthesis. 4x-1(2-3x)-5
-1*2=-2 and -1*-3x=3x, so -1(2-3x)=-2+3x