$$ \begin{array}{ll} ext { 9) }-38=7-9 \cdot x & x=\square \ ext { 10| }-78=-40-2 \cdot x & x=\square \ ext { 11) }-30=-62+2 \cdot x & x=\square \ ext { 12 } 17=-13+5 \cdot x & x=\square\end{array} $$

Question

$$ \begin{array}{ll}	ext { 9) }-38=7-9 \cdot x & x=\square \ 	ext { 10| }-78=-40-2 \cdot x & x=\square \ 	ext { 11) }-30=-62+2 \cdot x & x=\square \ 	ext { 12 } 17=-13+5 \cdot x & x=\square\end{array} $$

UpStudy AI · Accepted Answer

Let's solve each equation for $$ x $$:

---

**9)**
$$
-38 = 7 - 9x
$$

**Solution:**
$$
-38 - 7 = -9x \
-45 = -9x \
x = \frac{-45}{-9} \
x = 5
$$

**Answer:** $$ x = 5 $$

---

**10)**
$$
-78 = -40 - 2x
$$

**Solution:**
$$
-78 + 40 = -2x \
-38 = -2x \
x = \frac{-38}{-2} \
x = 19
$$

**Answer:** $$ x = 19 $$

---

**11)**
$$
-30 = -62 + 2x
$$

**Solution:**
$$
-30 + 62 = 2x \
32 = 2x \
x = \frac{32}{2} \
x = 16
$$

**Answer:** $$ x = 16 $$

---

**12)**
$$
17 = -13 + 5x
$$

**Solution:**
$$
17 + 13 = 5x \
30 = 5x \
x = \frac{30}{5} \
x = 6
$$

**Answer:** $$ x = 6 $$

---

**Summary of Solutions:**
$$
\begin{aligned}
&\text{9) } x = 5 \
&\text{10) } x = 19 \
&\text{11) } x = 16 \
&\text{12) } x = 6 \
\end{aligned}
$$
Here are the solutions for each equation: 9) $$ x = 5 $$ 10) $$ x = 19 $$ 11) $$ x = 16 $$ 12) $$ x = 6 $$

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