If $$\dfrac{-5}{7}=\dfrac{x}{28},$$ find the value of x.
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$$\Rightarrow \dfrac{-5}{7}=\dfrac{x}{28}$$ $$\Rightarrow 7x=-5\times28$$ $$x=\dfrac{-5\times28}{7}$$ $$x=-5\times4$$ $$x=-20$$ Therefore, the value of x is $$-20$$.
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