SOLUTION: x - + 13 = 20 2

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Question 91766This question is from textbook McDougal Littell Algebra 1
: x
- + 13 = 20
2 This question is from textbook McDougal Littell Algebra 1

Answer by mathispowerful(115) About Me  (Show Source):
You can put this solution on YOUR website!
Your goal, when solving a one-variable equation, is to isolate x, to do that you do opposite operations.
The first step is to eliminate 13 (constant term).
The opposite operation of "+" is "-", so I minus 13 on both sides of equation:
x%2F2 +13 - 13 = 20 - 13
-

x%2F2 = 7
now to get answer, do the opposite operation again, the opposite of division
is multiplication:
%28x%2F2%29%2A2+=+7%2A2
so x = 14 <==== answer.