Question

решите уравнения 1.-32,314:y=5,35
2.-a*7,1=216,55
3.-7,7418:x=2,07

Answer 1

$1) - frac{16157}{500}* frac{1}{y}=5,35 \ \ - frac{16157}{500y}=5,35 \ \ -16157=2675y \ \ y=- frac{151}{25} = -6,04$
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$2) -7,1a=216,55 \ \ a=216,55:(-7,1) \ a=-30,5$
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$3) - frac{38709}{5000}* frac{1}{x}=2,07 \ \ - frac{38709}{5000x}=2,07 \ \ -38709=10350x \ \ x=- frac{38709}{10350} \ \ x=- frac{187}{50}=-3,74$