Gujarat BoardEnglish MediumSTD 7MATHSSimple Equations1 Mark
Question
If $4x - 7 = 11,$ then $x = 4.$
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Answer
Solve the equation for $x,\Rightarrow4\text{x}-7=11$
$\Rightarrow4\text{x}=11+7 [$transposing $(-7)$ to $RHS]$
$\Rightarrow4\text{x}=18$
$\Rightarrow\frac{4\text{x}}{4}=\frac{18}{4} [$dividing both sides by $4]$
$\text{x}=\frac{9}{2}$
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