Question

Розв'яжіть систему рівнянь способом підстановки або способом додавання {2x + 3y = -7 {15x+8y = -6 Смотреть ответ nikiforovaalek11 nikiforovaalek11 Ответ:(1,3; -3,2)Объяснение:2х+3у=-7 ×1515х+8у=-6 ×(-2) 30х+45у=-105 -30х-16у=12 29у=-93 у=-93/29= -3,2 30х+45(-3,2)=-10530х-144=-10530х=39х=39/30= 1,3

Answer 1

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