Уравнение    5-(4у-у)=10       и   17у+(8-15у)=4

5-(4у-у)=10 5-3y=10 3y=10-5 y = 5/3   17у+(8-15у)=4 17y+8-15y=4 2y=4-8 y=2-4 y= -2

5-(4y-y)=10 5-3y=10 -3y=10-5 -3y=5 y= - [latex] 1\frac{2}{3} [/latex] 17y+(8-15y)=4 17y-15y=4-8 2y=-4 y=-2