2 уравнения 1) -2*(1/4+х)-6*(1/16-2х)=3х 2)3х+2*(2х-3)=8-7*(х-2)

Question

2 уравнения

1) -2*(1/4+х)-6*(1/16-2х)=3х

2)3х+2*(2х-3)=8-7*(х-2)

Answer 1

-2*(1/4+х)-6*(1/16-2х)=3х,

-1/2-2х-3/8+12х=3х,

-2х+12х-3х=4/8+3/8,

7х=7/8,

х=7/8:7=8/7*7/1,

х=8.

 

3х+2*(2х-3)=8-7*(х-2),

3х*4х-6=8-7х+14,

3х+4х+7х=8+6+14,

14х=28,

х=28:14,

х=2.

Answer 2

1) уровнение

-2 * (1/4+х)-6 * (1/16-2х) =3х

-1: 2-2х-3:8+12х=3х

-2х+12х-3х=4:8+3:8

7х=7:8,

х=7:8:7=8:7 * 7:1

х=8.

 

2) уровнение

3х+2*(2х-3)=8-7*(х-2)

3х*4х-6=8-7х+14

3х+4х+7х=8+6+14

14х=28

х=28:14

х=2.