Solve for X:
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Solve for X:
First, simplify the right side of the equation:
Hence, the equation becomes .
Since both sides are equal, must be .
Therefore, the solution is .
0
Solve the equation
\( 5x-15=30 \)
Simplifying first makes the equation clearer! When you see , it's obvious that x must be 0. If you don't simplify, you might make calculation errors.
When you have the same number on both sides (like 9 = 9), the variable that makes this true is your answer. In , x must be 0.
Check your work! If x = -2, then , but . Since 11 ≠ 9, x = -2 is wrong.
Yes, but it's easier to simplify first! You could write , but that creates , giving the same answer with more steps.
It means zero is the solution! When you substitute 0 for x in the original equation, both sides become equal. Zero is a perfectly valid answer in algebra.
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