SOLUTION: Ok so the variable for this equation is on both sides and I need to use addition or subtraction to collect the variable on one side and the solve.
The problem is: 2x - 1 = 8 - x
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Question 717657: Ok so the variable for this equation is on both sides and I need to use addition or subtraction to collect the variable on one side and the solve.
The problem is: 2x - 1 = 8 - x
The answer is supposed to come out to 3 but I'm not getting that.
Here's my work:
2x - 1 = 8 - x
2x - 2x - 1 = 8 - 2x - x
1 = 8 - 2x
1 + 8 = 8 - 2x + 8
9 = ?????
And I don't know what to do after that to get my final answer.
Help would be much appreciated. If I know how to get the answer to this then I'll be able to solve the rest of the math equations I have.
Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
2x - 1 = 8 - x
----
Add "x" to both sides:
Add "1" to both sides:
----
3x = 9
Divide by 3 to solve for "x":
x = 3
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Cheers,
Stan H.
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