SOLUTION: 7x � 2(x + 5) = 1 � 2(4 � 3x) is x = -3. Using LS = RS and substitution, verify that this answer is correct. I don't know how to use LS = RS so I need help with that.

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Question 1090080: 7x � 2(x + 5) = 1 � 2(4 � 3x) is x = -3.
Using LS = RS and substitution, verify that this answer is correct.
I don't know how to use LS = RS so I need help with that.
Answer by josmiceli(19441) (Show Source):
You can put this solution on YOUR website!
Left side = Right side
When there is an " = " sign, you are saying
that this must be true.
You just can't say something that is obviously
wrong, like
-----------------------------
The rule that must be followed is:
Whatever you do to the left side, you MUST
also do to the right side also
-----------------------------

I want to get all the terms with in them
on one side. First I'll get rid of the parenthses

Subtract from both sides

Combine terms on both sides

Do the subtraction of terms on the left side

Add to both sides

Now multiply both sides by

Hope this helps