Subjects algebra

Solve For R 80A5A2

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1. **State the problem:** Solve the equation $$-r - \frac{10}{2} = 9$$ for $r$. 2. **Simplify the fraction:** $$\frac{10}{2} = 5$$, so the equation becomes $$-r - 5 = 9$$. 3. **Isolate the term with $r$:** Add 5 to both sides: $$-r - 5 + 5 = 9 + 5$$ $$-r = 14$$ 4. **Solve for $r$:** Multiply both sides by $-1$ to get rid of the negative sign: $$\cancel{-1} \times (-r) = \cancel{-1} \times 14$$ $$r = -14$$ **Final answer:** $$r = -14$$