1. 4x+5=9-2x 6x=4 /:6 x=4/6 = 2/3 2. 7x-3=4x+15 3x = 18 /: 3 x = 6 3. -3x+6=16-9x 6x = 10 /:6 x = 10/6 = 5/3 = 1 2/3 4. 2x+5=-x+3 3x = -2 /:3 x = - 2/3 5. 4x+3=7-x 5x = 4 /: 5 x = 4/5 6. x-9=2x+16 -x = 25 /*(-) x = -25 7. 10x+1=x-2 9x = -3 /:9 x = - 3/9 = - 1/3 8. 14x+5=2x+4 12x = -1 /: 12 x = - 1/12 9. -2x-10=-5-3x x = 5 10. x+4=100+100x -99x = 96 / (-99 x = - 96/99 = - 32/33
1. 4x+5=9-2x 4x + 2x = 9 - 5 6x = 4 /:6 x = 2/3 2. 7x-3=4x+15 7x - 4x = 15 + 3 3x = 18 /:3 x = 6 3. -3x+6=16-9x -3x + 9x = 16 - 6 -6x = 10 /:(-6) x = 5/3 4. 2x+5=-x+3 2x + x = 3 - 5 3x = -2 /:3 x = -2/3 5. 4x+3=7-x 4x + x = 7 - 3 5x = 4 /:5 x = 0,8 6. x-9=2x+16 x - 2x = 16 + 9 -x = 25 /:(-1) x = -25 7. 10x+1=x-2 10x - x = -2 - 1 9x = -3 /:9 x = -1/3 8. 14x+5=2x+4 14x - 2x = 4 - 5 12x = -1 /:12 x = -1/12 9. -2x-10=-5-3x -2x + 3x = -5 + 10 x = 5 10. x+4=100+100x x - 100x = 100 - 4 -99x = 96 /:(-99) x = -32/33
