Solve for X:
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Solve for X:
First, simplify the right side of the equation:
Hence, the equation becomes .
Subtract 5 from both sides to isolate :
This simplifies to:
Divide by -1 to solve for :
Therefore, the solution is .
-3
\( x+7=14 \)
\( x=\text{?} \)
The answer is negative because we're subtracting x on the left side! When 5 - x = 8, we need x to be negative so that subtracting it (which means adding its positive value) gives us 8.
Not always! Look at the operation. If you have 5 - x, subtract 5. If you have 5 + x, subtract 5. The goal is to isolate the x term on one side.
It means negative x equals 3. To find x, you need to multiply both sides by -1, which gives you x = -3. Think of it as: what number, when made negative, equals 3?
Yes! You can add x to both sides: , then subtract 8: . Both methods work and give the same answer.
Substitute carefully! For x = -3: and . Both sides equal 8, so it's correct!
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