Question

A) 5x-4x = 20

B) 5x+3x=24

C) 8x-2-3x = 20

D) 12x-8x-3 = 13

E) -x-2x-8 = 1

F) 7 (x-2) = 3 (x+3)

G) 4(x-5) +4 (x-1) = 0

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

I) 7 (x-1) -2 (x-5) = x+5​

Answer 1

A) 5x-4x=20

x=20

B) 5x+3x=24

8x=24

x=24/8

x=3

C)8x-2-3x=20

8x-3x= 20+2

5x=22

x=22/5

x=4,4

D)12x-8x-3=13

12x-8x=13+3

4x=16

x=16/4

x=4

E) -x-2x-8=1

-x-2x=1+8

-3x=9 (-1)

3x= -9

x=-9/3

x=-3

F)7(x-2)= 3(x+3)

7x-14=3x+9

7x-3x=9+14

4x=23

x=23/4

x=5,75

G)4(x-5)+4(x-1)=0

4x-20+4x-4=0

4x+4x=20+4

8x=24

x=24/8

x=3

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

12x-6=-4x-12

12x+4x= -12+6

16x=-6

x=-6/16

x= -0,35

I)7(x-1)-2(x-3)=x+5

7x-7-2x+6=x+5

7x-2x-x=5+7-6

7x-3x=2-6

4x=-4

x=-4/4

x=-1

Espero ter ajudado :3