помогите решить уравнение 1) 1,2 - 2(1,3x + 1) = 5,6 x - 27,04 x: 3,5 = 1,2 : 0,4. Created by SoFiYa2345. matematika-ru

помогите решить уравнение 1) 1,2 - 2(1,3x + 1) = 5,6 x

shevtsovavalia 1)1,2-2,6x-2=5,6x-27,04
8,2x=26,24
x=3,2
2)0,4x=3,5*1,2
0,4x=4,2
x=10,5

1 votes Thanks 2

DashaKovalenko21 1)1,2-2,6х-2=5,6х-27,04
-2,6х-5,6х=-27,04-1,2
-8,6х=-28,24
8,6х=28,24
х=28 24/10÷8 2/10
х=304/10÷82/10
х=304/10×10/82
х=152/41
х=3 29/41
2) х÷3,5=1,2÷0,4
0,4х=4,2
х=10,5

1 votes Thanks 0

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