MCQ
The solution of the equation $ax + b = 0$ is:
- A$\text{x}=\frac{\text{a}}{\text{b}}$
- B$\text{x}=-\text{b}$
- ✓$\text{x}=-\frac{\text{b}}{\text{a}}$
- D$\text{x}=\frac{\text{b}}{\text{a}}$
✓
Answer
Correct option: C.
$\text{x}=-\frac{\text{b}}{\text{a}}$
Given equation is
$ax + b = 0$
$ax = -b$
$\frac{\text{ax}}{\text{a}}=-\frac{\text{b}}{\text{a}}$
$\text{x}=-\frac{\text{b}}{\text{a}}$
Hence, the solution of the equation $ax + b = 0$ is $\text{x}=-\frac{\text{b}}{\text{a}}$
$ax + b = 0$
$ax = -b$
$\frac{\text{ax}}{\text{a}}=-\frac{\text{b}}{\text{a}}$
$\text{x}=-\frac{\text{b}}{\text{a}}$
Hence, the solution of the equation $ax + b = 0$ is $\text{x}=-\frac{\text{b}}{\text{a}}$
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