Pomóżcie !!!!! Na piątek !!! x + 5 =10 2x +3 = 15 5x +13 = 23 3x +11 = 41 -x+2=8 -x+5=-2 -2x-7=11 -5x+3=-12 -1,5x+2=9,5 2 (x+3) = 10 3(x-1)+2 = -7 3(x+3)+2(x+4) +x +1 4(3x+2) +5(2x + 3 )+-(2x+13)
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x+5=10 2x+3=15 5x+13=23 3x+11=41 -x+2=8
x=10-5 2x=15-3 5x=23-13 3x=41-11 -8+2=x
x=5 2x=12/2 5x=10/5 3x=30/3 -6=x
5+5=10 x=6 x=2 x=10 6+2=8
2*6+3=15 5*2+13=23 3*10+11=41
-x+5=-2 2x-7=11 5x+3=-12 reszta za chwilę
2+5=x 2x=11+7 5x=-12-3
7=x 2x=18/2 5x=-15/5
-7+5=-2 x=9 x=-3
x+5 = 10
x = 10 -5
x= 5
2x +3 = 15
2x = 15 -3
2x = 12/: 2
x = 6
5x +13 = 23
5x = 23 - 13
5x = 10/:5
x = 2
3x + 11 = 41
3x = 41 - 11
3x = 30 /:3
x = 10
-x +2 = 8
- x = 8 - 2
- x = 6 /*(-1)
x = -6
-x +5 = -2
-x = -2 -5
-x = -7/*(-1)
x = 7
-2x -7 = 11
-2x = 11 + 7
-2x = 18/:(-2)
x = -9
-5x +3 = -12
-5x = -12 -3
-5x = -15 /:(-5)
x = 3
-1,5x +2 = 9,5
-1,5x = 9,5 -2
-1,5 x = 7,5 /:(-1,5)
x = - 5
2(x +3) = 10
2x +6 = 10
2x = 10 -6
2x = 4 /:2
x = 2
3(x-1)+2= -7
3x - 3 +2 = -7
3x -7 +3 -2
3x = -6/:3
x = -2
3(x+3)+2 (x+4)+x +1
3x + 9 +2x +8 +x +1
3x +2x +x = -9 -8 -1
6x = -18 /:6
x = -3
A moze ten przykład miał być tak:
3(x+3) +2(x+4) = x +1
3x +9 +2x +8 = x +1
3x +2x -x = 1 -9 -8
4x = - 16/:4
x = -4
4(3x+2) +5(2x+3)= -(2x +13)
12x +8 +10x +15 = -2x -13
12x + 10x +2x = -13 -8 -15
24x = - 36/:24
x = -36/24
x = - 3/2