Rozwiąż równania stopnia pierwszego :
-2(x-2)=2x+4
1/2(2+4x)=5-x
x-(4x+2)=6-(x+2)
POTRZEBUJE NA JUŻ ! ! ! :D
-2x +4 = 2x + 4
-2x -2x = 4 -4
-4x = 0/:(-4)
x = 0
1 + 2x = 5 - x
2x + x = 5 - 1
3x = 4/:3
x = 4/3
x - 4x - 2 = 6 - x - 2
-3x + x = 4 + 2
-2x = 6/:(-2)
x = -3
1.
-2(x-2) = 2x+4
-2x+4 = 2x+4
-2x-2x = 4-4
-4x = 0
2.
½(2+4x) = 5-x I*2
2+4x = 10-2x
4x+2x = 10-2
6x = 8 /:6
x = 8/6 = 4/3
x = 1⅓
3.
x-(4x+2) = 6-(x+2)
x-4x-2 = 6-x-2
-3x+x = 4+2
-2x = 6 /:(-2)
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-2(x-2)=2x+4
-2x +4 = 2x + 4
-2x -2x = 4 -4
-4x = 0/:(-4)
x = 0
1/2(2+4x)=5-x
1 + 2x = 5 - x
2x + x = 5 - 1
3x = 4/:3
x = 4/3
x-(4x+2)=6-(x+2)
x - 4x - 2 = 6 - x - 2
-3x + x = 4 + 2
-2x = 6/:(-2)
x = -3
1.
-2(x-2) = 2x+4
-2x+4 = 2x+4
-2x-2x = 4-4
-4x = 0
x = 0
2.
½(2+4x) = 5-x I*2
2+4x = 10-2x
4x+2x = 10-2
6x = 8 /:6
x = 8/6 = 4/3
x = 1⅓
3.
x-(4x+2) = 6-(x+2)
x-4x-2 = 6-x-2
-3x+x = 4+2
-2x = 6 /:(-2)
x = -3