1) -2x+19=5x-16 2)8x-25=3x+20 3)6-y=3(3-8) 4)5(y+1,2)=7y+4 - вопрос №12195162825320363384512745431655631787542454 от 224678 05.04.2023 06:21

Question

Математика: 1) -2x+19=5x-16 2)8x-25=3x+20 3)6-y=3(3-8) 4)5(y+1,2)=7y+4 5)4(x-3)-16=5(x-5) 6)3x-17=8x+18 7)11-5y= 12-6y 8)4y+(11,8-y)=3,8-5y 9)3x+16=8x-9

224678 · Answer

1) -2x+19=5x-16 -2x-5x=-19-16-7x=-35x= -35/-7x = 52)8x-25=3x+208x-3x=25+205x=45x=45/5x=93)6-y=3(3-8)-y= +6-15-y= -9 /:-1y=94)5(y+1,2)=7y+45y+6=7y+45y-7y=-6+4-2y=-2y=1Дальше по анологии5)4(x-3)-16=5(x-5)4х-12-16=5х-254x-28=5x-254x-5x=+28-25-x=3 | :-1x= -36)3x-17=8x+187)11-5y= 12-6y8)4y+(11,8-y)=3,8-5y9)3x+16=8x-9...