Решить уравнения) 1)8с+0,73=4,61-8с 2)13-(5х+11)=6х - вопрос №9050254180734618213511632344851197 от АлёнаKet234 15.01.2022 18:55

Question

Математика: Решить уравнения) 1)8с+0,73=4,61-8с 2)13-(5х+11)=6х 3)2=(3х--4х) 4)8х+5=119+(7-3х) 5)(4у++11)=7+(13-4у) 6)(3-2х)+(4-3х)+(5-5х)=12+7х 7)3у-(у-19)=2у

АлёнаKet234 · Answer

1)8с+0,73=4,61-8с8с + 8с = 4,61 - 0,7316с = 3,88c = 3,88:16c = 0,24252)13-(5х+11)=6х13 - 5x - 11 = 6x2 - 5x = 6x6x + 5x = 211x = 2x = 2:11x = 2/113)2=(3х-5)-(7-4х)3x - 5 - 7 + 4x = 27x - 12 = 27x = 2 + 127x = 14x = 14 : 7x = 24)8х+5=119+(7-3х)8x + 5 = 119 + 7 - 3x8x + 5 = 126 - 3x8x + 3x = 126 - 511x = 121x = 121 : 11x = 115)(4у+3)-(10у+11)=7+(13-4у)4y + 3 - 10y - 11 = 7 + 13 - 4y-6y - 8 = 20 - 4y-6y + 4y = 20 + 8-2y = 28y = -28 : 2y = -146)(3-2х)+(4-3х)+(5-5х)=12+7х3 - 2x + 4 - 3x + 5 - 5x = 12...