Question

1. 8,9x+17,54=5,4x+2,84

2. 4,37+6,7x=7,75+9,3

3. 4*(3-x)-11=7*(2x-5)

Answer 1

1) 8,9x+17,54=5,4x+2,84

8,9х - 5,4х = 2,84 - 17,54 

3,5х = -14,7

х = -14,7 : 3,5 

х = -4,2 

 

2) 4,37+6,7x=7,75+9,3

6,7х = 7,75 + 9,3 - 4,37 

6,7х = 12,68 

х = 12,68 : 6,7

х = 1,8

 

3) 4*(3-x)-11=7*(2x-5)

12 - 4х - 11 = 14х - 35 

-4х - 14х = -35 - 1 

- 18х = -36

х = 36 : 18

х = 2 

Answer 2

1)8.9x+17.54=5.4x+2.84
8.9x-5.4x=2.84-17.54
3.5x=-14.7
X=-4.2
2)4.37+6.7x=7.75+9.3
6.7x=7.75+9.3-4.37
6.7x=12.68
X=12.68:6.7
X=1.8
3)4*(3-x)-11=7*(2x-5)
12-4x-11=14x-35
-4x-14x=-35-12+11
-18x=-36
X=36:18
X=2