Odpowiedź:
-x+2=8
2-8=x
x=-6
-x-8=-3
-8+3=x
x=-5
-x+5=-2
5+2=x
x=7
-x-2=-11
-2+11=x
x=9
-5x+3=-12
3+12=5x
5x=15 /:5
x=3
-3x+5=17
5-17=3x
3x=-12 /:3
x=-4
-2x-7=11
-7-11=2x
2x=-18 /:2
x=-9
-6x-3=-15
-3+15=6x
6x=12 /:6
x=2
Szczegółowe wyjaśnienie:
Cześć!
a)
-x + 2 = 8
-x = 8 - 2
-x = 6
x = -6
b)
-x - 8 = -3
-x = 3+8
-x = 5
x = -5
c)
-x + 5 = -2
-x = -2-5
-x = -7
x = 7
d)
-x - 2 = -11
-x = -11 + 2
-x = -9
x = 9
e)
-5 x + 3 = -12
-5x = -12 - 3
-5x = -15
x = 3
f)
-3x + 5 = 17
-3x = 17 - 5
-3x = 12
x = -4
g)
-2x - 7 = 11
-2x = 11 + 7
-2x = 18
x = -9
h)
-6x - 3= -15
-6x = -15 + 3
-6x = -12
x = 2
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Odpowiedź:
-x+2=8
2-8=x
x=-6
-x-8=-3
-8+3=x
x=-5
-x+5=-2
5+2=x
x=7
-x-2=-11
-2+11=x
x=9
-5x+3=-12
3+12=5x
5x=15 /:5
x=3
-3x+5=17
5-17=3x
3x=-12 /:3
x=-4
-2x-7=11
-7-11=2x
2x=-18 /:2
x=-9
-6x-3=-15
-3+15=6x
6x=12 /:6
x=2
Szczegółowe wyjaśnienie:
Cześć!
Odpowiedź:
Szczegółowe wyjaśnienie:
a)
-x + 2 = 8
-x = 8 - 2
-x = 6
x = -6
b)
-x - 8 = -3
-x = 3+8
-x = 5
x = -5
c)
-x + 5 = -2
-x = -2-5
-x = -7
x = 7
d)
-x - 2 = -11
-x = -11 + 2
-x = -9
x = 9
e)
-5 x + 3 = -12
-5x = -12 - 3
-5x = -15
x = 3
f)
-3x + 5 = 17
-3x = 17 - 5
-3x = 12
x = -4
g)
-2x - 7 = 11
-2x = 11 + 7
-2x = 18
x = -9
h)
-6x - 3= -15
-6x = -15 + 3
-6x = -12
x = 2