Розв'яжіть систему рівнянь 5(2х-3у)=4х 6х-4у=4(2х-1)-5.. Created by miroslavmelnik84. algebra-ru

Розв'яжіть систему рівнянь 5(2х-3у)=4х 6х-4у=4(2х-1)-5...

July 2022 1 7 Report

Розв'яжіть систему рівнянь 5(2х-3у)=4х 6х-4у=4(2х-1)-5.

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alexokmail

$5(2x - 3y) = 4x \brace 6x - 4y = 4(2x - 1) - 5 \\ 10x - 15y = 4x \brace 6x - 4y = 8x - 4 - 5 \\ 6x = 15y \brace2x = 9 - 4y \\ 2x = 5y \brace 5y = 9 - 4y \\ 9y = 9 \brace x = \frac{5}{2} y \\ y = 1 \brace x = \frac{5}{2}=2,5$

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