Решите уравнения: 1) 2.4х-6=-1.2х+19.2 2) 2(0.6х-3)=3(-0.1х+3) 3) 4(0.7х-4)=3(-0.2х+6)

Question

Решите уравнения:

1)

2.4х-6=-1.2х+19.2

2)

2(0.6х-3)=3(-0.1х+3)

3)

4(0.7х-4)=3(-0.2х+6)

Answer 1

1)2.4х-6=-1.2х+19.2

2.4x+1,2x=19,2+6

3,6x=25,2

x=7

2)2(0.6х-3)=3(-0.1х+3)

1,2x-6=-0,3x+9

1,2x+0,3x=9+6

1,5x=15

x=10

3)4(0.7х-4)=3(-0.2х+6)

2,8x-16=-0,6x+18

2,8x+0,6x=18+16

3,4x=34

x=10

Answer 2

1)2.4х-6=-1.2х+19.2

2.4x+1,2x=19,2+6

3,6x=25,2

x=7

 

2)2(0.6х-3)=3(-0.1х+3)

1,2x-6=-0,3x+9

1,2x+0,3x=9+6

1,5x=15

x=10

 

3)4(0.7х-4)=3(-0.2х+6)

2,8x-16=-0,6x+18

2,8x+0,6x=18+16

3,4x=34

x=10

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