MCQ
The equation having $-3$ as a solution is:
- A$x + 3 = 1$
- B$8 + 2x = 3$
- ✓$10 + 3x = 1$
- D$2x + 1 = 3$
✓
Answer
Correct option: C.
$10 + 3x = 1$
Let us solve the equation:
$a.$ Given equation is $x + 3 = 1$
$\Rightarrow x = 1 - 3$
$\Rightarrow x = -2$
$b.$ Given equation is $8 + 2x = 3$
$\Rightarrow 2x = 3 - 8$
$\Rightarrow 2x = -5$
$\Rightarrow\text{x}=-\frac{5}{2}$
$c.$ Given equation is $10 + 3x = 1$
$\Rightarrow 3x = 1 - 10$
$\Rightarrow 3x = -9$
$\Rightarrow x = -3$
Now, we don't have to solve next equation as we get the answer.
$a.$ Given equation is $x + 3 = 1$
$\Rightarrow x = 1 - 3$
$\Rightarrow x = -2$
$b.$ Given equation is $8 + 2x = 3$
$\Rightarrow 2x = 3 - 8$
$\Rightarrow 2x = -5$
$\Rightarrow\text{x}=-\frac{5}{2}$
$c.$ Given equation is $10 + 3x = 1$
$\Rightarrow 3x = 1 - 10$
$\Rightarrow 3x = -9$
$\Rightarrow x = -3$
Now, we don't have to solve next equation as we get the answer.
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