Question

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$y10007 \times 22 = y10y111$
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Answer 1

Resposta:

$y\cdot \:10007\cdot \:22=y\cdot \:10y\cdot \:111\quad :\quad y=0,\:y=\frac{110077}{555}$

Explicação passo a passo:

$y\cdot \:10007\cdot \:22=y\cdot \:10y\cdot \:111\\y\cdot \:10007\cdot \:22-y\cdot \:10y\cdot \:111=y\cdot \:10y\cdot \:111-y\cdot \:10y\cdot \:111\\y\cdot \:10007\cdot \:22-y\cdot \:10y\cdot \:111=0\\2y\left(110077-555y\right)=0\\y=0\quad \mathrm{or}\quad \:110077-555y=0\\y=0,\:y=\frac{110077}{555}$