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Linear Equations in One Variable — MATHS STD 8 — Question

Gujarat BoardEnglish MediumSTD 8MATHSLinear Equations in One Variable1 Mark
MCQ
The root of the equation $2y = 5(3 + y)$ is:
  • A
    $\text{5}$
  • B
    $\frac{1}{5}$
  • ✓
    $-\text{5}$
  • D
    $-\frac{1}{5}$
✓

Answer

Correct option: C.
$-\text{5}$
$2\text{y} = 5 (3 + \text{y})$
$\Rightarrow2\text{y} = 15 + 5\text{y}$
$\Rightarrow5\text{y} – 2\text{y} = -15$
$\Rightarrow\text{3y} = - 15$
$\Rightarrow\text{y}= - \frac{15}{3}= - 5$

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