14х+4х-48=240 25b-7b-9=279 16a-7a+96=222 20y+5y+y+19=227 - вопрос №66363581444824025792791679622220519227 от kushmantsev 28.04.2023 02:38

Question

Математика: 14х+4х-48=240 25b-7b-9=279 16a-7a+96=222 20y+5y+y+19=227

kushmantsev · Answer

14х+4х-48=24018х-48=24018х=240+4818х=288х=288/18х=1625b-7b-9=27918b-9=27918b=279+918b=288b=288/18b=1616a-7a+96=2229а+96=2229а=222-969а=126а=126/9а=1420y+5y+y+19=22726у+19=22726у=227-1926у=208у=208/26у=8...