Rozwiąż równania: 1. 4x+5=9-2x 2. 7x-3=4x+15 3. -3x+6=16-9x 4. 2x+5=-x+3 5. 4x+3=7-x 6. x-9=2x+16 7. 10x+1=x-2 8. 14x+5=2x+4 9. -2x-10=-5-3x 10. x+4=100+100x
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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