Rozwiąż równania:
a) -3x=2x-10
b) 2x-2=7-x
c) 10=4-2x
e) 2(x+1)=x
g) -(4+x)=2(3-x)
h) 3(y+6)-y=2(y+9)
i) (x-7)-2(3x+5)=3
Jak ktoś ma matematyka z plusem 1 to str.176 zad.2
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a) -3x=2x-10
x=2
b) 2x-2=7-x
3x=9
x=3
c) 10=4-2x
-2x=6
x=-3
e) 2(x+1)=x
x=-2
g) -(4+x)=2(3-x)
-4-x=6-2x
x=2
h) 3(y+6)-y=2(y+9)
3y+18-y=2y+18
y=0
i) (x-7)-2(3x+5)=3
x-7-6x-10=3
-5x=20
x=-4