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Linear Equations — MATHS STD 8 — Question

Gujarat BoardEnglish MediumSTD 8MATHSLinear Equations1 Mark
MCQ
Tick $(\checkmark)$ the correct answer: If $3(t - 3) = 5(2t + 1),$ then $t = ?$
  • ✓
    $-2$
  • B
    $2$
  • C
    $-3$
  • D
    $3$
✓

Answer

Correct option: A.
$-2$
$3 ( \text{t} - 3 ) = 5 ( 2\text{t} + 1 )$
$\Rightarrow3\text{t} - 9 = 10\text{t} + 5$
$\Rightarrow3\text{t} - 10\text{t} = 9 + 5$
$\Rightarrow-7\text{t} = 14$
$\Rightarrow -\text{t} = \frac{14}{7}=2$
$\Rightarrow \text{t} = -2$

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