Помогите решить уравнения 1) -3x+5(9+4x)=-x-4 2) -6x-4(9-7x)=-5x+1 3) x+1-5(x-5)=5(5-x)+5. Created by samuel008kim. algebra-ru

Помогите решить уравнения 1) -3x+5(9+4x)=-x-4 2) -6x-4(9-7x)=-5x+1 3) x+1-5(x-5...

August 2022 1 0 Report

Помогите решить уравнения
1) -3x+5(9+4x)=-x-4
2) -6x-4(9-7x)=-5x+1
3) x+1-5(x-5)=5(5-x)+5

Answers & Comments

Fapok 1) -3х+5(9+4х)=-х-4 => -3x+45+20x=-x-4 -3x+20x+x=-45-4 18x=-49 x=-49/18
x=-2 13/18
2) -6x-4(9-7x)=-5x+1 -6x-36+28x=-5x+1 -6x+28x+5x=+36+1 27x=37 x=37/27 x=1 10/27
3) x+1-5(x-5)=5(5-x)+5 x+1-5x+25=25-5x+5 x-5x+5x=25-25+5-1 x=4

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