Question

b)x-1=-8

c)7x+5=68-2x

D)14-3x=2x+29

e)8x-9+=x+11
me ajudem por favor

f)3y-8=13

g)12x-10=5x+11

h)10-4x=9-2x

i)2(x+2)+12(x+11=2

j)2x-4=8

Answer 1

Explicação passo-a-passo:

b) x-1=-8

x= -8+1

x= -7

c)7x+5=68-2x

7x +2x = 68-5

9x = 63

x=63/9

x=7

d)14-3x=2x+29

-3x -2x = 29-14

-5x =15

x= 15/-5

x= -3

e)8x-9=x+11

8x -x = 11+9

7x = 20

x= 20/7

f) 3y-8=13

3y= 13+8

3y= 21

y=21/3

y=7

g) 12x -10= 5x+11

12x -5x = 11+10

7x = 21

x= 21/7

x=3

h)10-4x= 9-2x

-4x +2x = 9-10

-2x = -1

x= -1/-2

x=+1/2

i) 2(x+2)+12(x+11)=2

2x +4 +12x +132= 2

14x + 136=2

14x = 2 -136

14x = -134

x= -134/14

x= -67/7

j) 2x -4=8

2x= 8+4

2x= 12

x= 12/2

x=6