Oblicz,a następnie sprawdź,czy otrzymana liczba spełnia równanie (L=P)
a) 4u+2=u-7
b) 2w+3=4w-5
c) -t+2=4+5t
4u-u=-7-2
3u=-9 /:3
u=-3
4*(-3)+2=-3-7
-12+2=-10
-10=-10
2w-4w=-5-3
-2w=-8 /:(-2)
w=4
2*4+3=4*4-5
8+3=16-5
11=11
-t-5t=4-2
-6t=2 /:(-6)
t=-1/3
1/3+2=4+5*(-1/3)
2 1/3=4-5/3
2 1/3=7/3
7/3=7/3
Liczę na naj :)
3u = -9 / : 3
u = -3
Spr.
L = 4(-3)+2 = -10
P = -3 -7 = -10
L=P
-2w = -8 /: (-2)
w = 4
L = 2*4 + 3 = 11
P = 4*4 - 5 = 11
-6t = 2 /: (-6)
t = - 1/3
L = -(-1/3)+2 = 1/3 + 2 = 1/3 + 2/1 = 1/3 + 6/3 = 7/3
P = 4+5(-1/3) = 4 - 5/3 = 4/1 - 5/3 = 12/3 - 5/3 = 7/3
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a) 4u+2=u-7
4u-u=-7-2
3u=-9 /:3
u=-3
4*(-3)+2=-3-7
-12+2=-10
-10=-10
b) 2w+3=4w-5
2w-4w=-5-3
-2w=-8 /:(-2)
w=4
2*4+3=4*4-5
8+3=16-5
11=11
c) -t+2=4+5t
-t-5t=4-2
-6t=2 /:(-6)
t=-1/3
1/3+2=4+5*(-1/3)
2 1/3=4-5/3
2 1/3=7/3
7/3=7/3
Liczę na naj :)
a) 4u+2=u-7
3u = -9 / : 3
u = -3
Spr.
L = 4(-3)+2 = -10
P = -3 -7 = -10
L=P
b) 2w+3=4w-5
-2w = -8 /: (-2)
w = 4
Spr.
L = 2*4 + 3 = 11
P = 4*4 - 5 = 11
L=P
c) -t+2=4+5t
-6t = 2 /: (-6)
t = - 1/3
Spr.
L = -(-1/3)+2 = 1/3 + 2 = 1/3 + 2/1 = 1/3 + 6/3 = 7/3
P = 4+5(-1/3) = 4 - 5/3 = 4/1 - 5/3 = 12/3 - 5/3 = 7/3