1) 10-4x = 15- 3x 2) -2x+5 = -x-9 3) 18+2x = 6x-8

[tex]1). - 4x + 3x = - 15 - 15 \\ x = - 25 \\ 2). - 2x + x = - 5 + 9 \\ - x = 4 \\ 3).2x - 6x = 8 - 18 \\ - 4x = - 10 \\ - x = 10 \div 4[/tex]