Question

Cine poate sa ma ajute nam ânteles nimic EX.93-96-101-105-112---------Dau Coroniță-----Va rog----Multumesc----Cu rezolvare nu numai rezultatul​

Answer 1

1) 2x-7+4x=x+3

6x-7=x+3

6x-x-7=3

6x-x=3+7

5x=10

x=10:5

x=2

2) -15+8x+4=4-2x

-15+8x=-2x

8x+2x=15

10x=15

x=15/10

×=3/2

3)10x-1=10x+40-x-25

-1=40-x-25

-1=15-x

x=15+1

x=16

4) 1+12x=-4x-16+15

1+12x=-4x-1

12x+4x=-1-1

16x=-1-1

16x=-2

x=-1/8

5) 3(5-x)-8=-5x+4

15-3x-8=-5x+4

7-3x=-5x+4

-3x-5x=4-7

2x=4-7

2x=-3

x=-3/2

6) 75-2=5-2(x-1)

73=5-2x+2

73=7-2x

2x+73=7

2x=7-73

2x=-66

x=-33

7)5x-(x+3)-2(4-x)=2(8+x)-(3x-1)

5x-(x+3)-8=16-(3x-1)

5x-x-3-8=16-3x+1

4x-11=17-3x

4x+3x-11=17

7x=17+11

7x=28

x=4