Question

gente me ajudem por favor.

Answer 1

F) 4x-3 = x+9

4x-x = 3+9

3x = 12

x = 12/3

x = 4

G) 8x-10x - 15 = 2

-2x - 15 = 2

-2x = 2+15

-2x = 17

x = 17/2

x = 8,5

H) 5x+4 = 4x-13

5x-4x = -13-4

x = -17

I) 9x+8 = 7x+16

9x-7x = 16-8

2x = 8

x = 8/2

x = 4

J) 3(x-1) = x+11

3x - 3 = x + 11

3x - x = 11 + 3

2x = 14

x = 14/2

x = 7