Question
Upstudy AI Solution
Tutor-Verified Answer
Answer
\( u = -2 \)
Solution
To solve for \( u \) in the equation:
\[
u - 7 = -9
\]
**Step 1:** Add 7 to both sides of the equation to isolate \( u \).
\[
u - 7 + 7 = -9 + 7
\]
**Step 2:** Simplify both sides.
\[
u = -2
\]
**Solution:**
\[
u = -2
\]
Answered by UpStudy AI and reviewed by a Professional Tutor
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Beyond the Answer
To solve for \( u \), you need to isolate \( u \) by getting rid of the -7 on the left side. You can do this by adding 7 to both sides of the equation: \[ u - 7 + 7 = -9 + 7 \] This simplifies to: \[ u = -2 \] So, the solution is: \[ u = -2 \]