Question
Real Tutor Solution
Tutor-Verified Answer
Answer
\( r = -12 \)
Solution
Para resolver la ecuación \( 1 + \frac{r}{-1.5} = 9 \), sigue estos pasos:
1. **Restar 1 de ambos lados:**
\[
\frac{r}{-1.5} = 9 - 1
\]
\[
\frac{r}{-1.5} = 8
\]
2. **Multiplicar ambos lados por -1.5 para despejar \( r \):**
\[
r = 8 \times (-1.5)
\]
\[
r = -12
\]
**Respuesta:** \( r = -12 \)
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Simplify this solution Bonus Knowledge
To solve the equation \( 1+\frac{r}{-1.5}=9 \), first, isolate the fraction by subtracting 1 from both sides, giving you \( \frac{r}{-1.5} = 8 \). Then, multiply both sides by -1.5 to find \( r \): \( r = 8 \times -1.5 \), which yields \( r = -12 \). Now you have a solution! But just to clarify, it’s always smart to plug your answer back into the original equation to verify it works, ensuring your math is on point and avoiding that dreaded error!
