Rozwiąż równania:
1) 5x - 3 = 7x + 1
2) 10 + 4( 1 - x)= 2x - 6
3) -3x + 1 = -2(x-3) -3
4) x - 2 podzielić na ( kreska ułamkowa) 4 = 2
5) -2x + 0,5 = -3x + 2,5
6) 0,20x - 2 = 0,5x - 5
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1) 5x - 3 = 7x + 1
5x-7x = 1+3
-2x = 4 |:(-2)
x = -2
2) 10 + 4( 1 - x)= 2x - 6
10+4-4x = 2x-6
-4x-2x = -6-10-4
-6x = -20 | :(-6)
x = 20/6 = 3 1/3
3) -3x + 1 = -2(x-3) -3
-3x+1 = -2x+6-3
-3x+2x = 6-3-1
-x = 2 |:(-1)
x = -2
4) x - 2 podzielić na ( kreska ułamkowa) 4 = 2 |*4
x-2 = 8
x = 8+2
x = 10
5) -2x + 0,5 = -3x + 2,5
-2x+3x = 2,5-0,5
x = 2
6) 0,20x - 2 = 0,5x - 5
0,2x-0,5x = -5+2
-0,3x = -3 |:(-0,3)
x = 10
5x - 3 = 7x + 1
5x-7x = 1+3
-2x = 4 |:(-2)
x = -2
10 + 4( 1 - x)= 2x - 6
10+4-4x = 2x-6
-4x-2x = -6-10-4
-6x = -20 | :(-6)
x = 20/6 = 3 1/3
-3x + 1 = -2(x-3) -3
-3x+1 = -2x+6-3
-3x+2x = 6-3-1
-x = 2 |:(-1)
x = -2
x -0,5 = 2 |*4
x-2 = 8
x = 8+2
x = 10
-2x + 0,5 = -3x + 2,5
-2x+3x = 2,5-0,5
x = 2
0,20x - 2 = 0,5x - 5
0,2x-0,5x = -5+2
-0,3x = -3 |:(-0,3)
x = 10