Linear equations 3 (x+1) = 3x+3

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

4x + 2 - 3x + 5 - 2x - 10 = 2x - 5 + 3x + 4

4x - 3x - 2x + 5 + 2 - 10 = 2x + 3x - 5 + 4

- x - 3 = 5x - 1

-x - 3 = 5x - 1 is the line above recopied

+x = + x

-3 = 6x - 1

+1 = + 1

- 2 = 6x

- 2/6 = 6x/6

- 1/3 = x, the answer