Rozwiąż równania:
a) -3x = 2x - 10
b) 2x - 2 = 7 - x
c) 10 = 4 - 2
d) -(2x - 1) = 4
e) 2(x + 1) = x
f) 2t - (3t + 1) = 6
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a) -3x-2x=-10
-5x=-10/:(-5)
x=2
b) 2x+x=7+2
3x=9/:3
x=3
d) -2x+1=4
-2x=4-1
-2x=3/:(-2)
x= - 3/2
e) 2(x+1)=x
2x+2=x
2x-x=-2
x=-2
f) 2t-3t-1=6
2t-3t=6+1
-1t=7/: (-1)
t=-7
Rozwiąż równania:
a) -3x = 2x - 10 -3x-2x=-10 -5x=-10 |/-5 x=2
b) 2x - 2 = 7 - x 2x+x=7+2 3x=9 |/3 x=3
c) 10 = 4 - 2
d) -(2x - 1) = 4 -2x+1=4 -2x=4-1 -2x=3|/-2 x=-1,5
e) 2(x + 1) = x 2x+2=x 2x-x=-2 x=-2
f) 2t - (3t + 1) = 6 2t-3t+1=6 2t+3t=6-1 5t=5|/5 t=1
jak trzeba w zadaniu to jeszcze sprawdź