Question

alguem me ajuda pfv..

Answer 1

1) 5x + 5 - 3x - 6 = 0

2x -1 = 0

x = 1/2

2) 4x + 20 + 3x + 15 = 21

7 x + 35 = 21

7x = -14

x = -2

3) 3x + 3 - 2x + 2 = 0

x + 5 = 0

x = -5

4) 5x - 2x +12 = 3

3 x = -9

x = -3

5) 3x - 8x + 6 = -9x - 10

- 5x + 9x = -10 -6

4x = -16

x = -4

6) 6 + 3x = 0

3x = -6

x = -2

7) -4x + 36 = - 7x

- 4x + 7x = -36

3x = -36

x = -12

8) 2x - 8 = -3x -6

5x = 2

x = 2/5