Question

resolver ecuacones lineales :3

Answer 1

1) -2x-5=8x+3
-2x-8x=3+5
-10x=8
x=-2/5

2) 2x+3(x-2)=x+22
2x+3x-6=x-22
2x+3x-x=-22+6
4x=-16
x=-4

3)x+3(x-1)=6-4(2x-3)
x+3x-3=6-8x+12
x+3x+8x=6+12+3
12x=21
x=7/4

4)3x+5=5x/2+4
2(3x+5)=5x+4
6x+10=5x+4
6x-5x=4-10
x=-6

5)4(y+1)+3y-1=7y+3
4y+4+3y-1=7y+3
4y+3y-7y=3-4+1
y=0/0 indefinido o sin solucion

6) 14-12x+39x-18x=256-60x-657x
-12x + 39x - 18x + 657x + 60x = 256 -14
756x - 30x = 242
726x = 242 
x = 242/ 726
x= 121/363
x= 11/33 
x=1/3

7)8x-15x-30x-51x=53x+31x-172
8x-15x-30x-51x-53x-31x=-172
-172x=172
x=-1

Answer 2

Respuesta:

1) -2x-5=8x+3

-2x-8x=3+5

-10x=8

x=-2/5

2) 2x+3(x-2)=x+22

2x+3x-6=x-22

2x+3x-x=-22+6

4x=-16

x=-4

3)x+3(x-1)=6-4(2x-3)

x+3x-3=6-8x+12

x+3x+8x=6+12+3

12x=21

x=7/4

4)3x+5=5x/2+4

2(3x+5)=5x+4

6x+10=5x+4

6x-5x=4-10

x=-6

5)4(y+1)+3y-1=7y+3

4y+4+3y-1=7y+3

4y+3y-7y=3-4+1

y=0/

6) 14-12x+39x-18x=256-60x-657x

-12x + 39x - 18x + 657x + 60x = 256 -14

756x - 30x = 242

726x = 242  

x = 242/ 726

x= 121/363

x= 11/33  

x=1/3

7)8x-15x-30x-51x=53x+31x-172

8x-15x-30x-51x-53x-31x=-172

-172x=172

x=-1

Explicación paso a paso: