Rozwiąż równanie i sprawdż otrzymany wynik.
A3
d) -2x-7=2x-7
e) -7x+5=11x+41
f) 36x-14=14x-36
B3
f) 82x-9=-18x+1
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A3
d) -2x-7=2x-7
-2x - 2x =-7 + 7
-4x = 0
x = 0
spr. L = -2*0 - 7 = -7
P = 2*0 -7 = -7
L=P
e) -7x+5=11x+41
-7x - 11x = 41 -5
-18x = 36
x = -2
spr. L = -7*(-2) + 5 = 14+5 = 19
P = 11*(-2) + 41 = -22 + 41 = 19
L=P
f) 36x-14=14x-36
36x - 14x = -36 +14
22x = -22
x = -1
spr. L= 36*(-1) -14 = -36-14 = - 50
P = 14*(-1) - 36 = -14-36 = -50
L=P
B3
f) 82x-9=-18x+1
82x +18x = 1+9
100x = 10
x = 0,1
spr
L = 82*0,1 - 9 = 8,2 -9 = - 0,8
P = -18*0,1 +1 = -1,8+1 = -0,8
L=P