Question

find the value of x: -4/-21= -20/x
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Answer 1

Answer:

it's simple as u can't think

-4/-21=-21/X

negative divide negative will give positive

4/21= -21/X

multiply both side by X and 21

so

4X=-21×21 negative divide positive will negative

so

X = -441/4= -110.25

Answer 2

Answer:

❂ $\dfrac{- 4}{- 21} = \dfrac{- 20}{x}$

$\implies - 4x = - 21 \times -20$

$\implies - 4x = 420$

$\implies x = \cancel{\dfrac{420}{- 4}}$

$\implies x = - 105$

$\therefore \sf\: The\: value\: of\: x\: is\: - 105$