Rozwiąż równania
a) 3(3+x)+2x=8-2(x-1
b)4x-5-(3x+6)=2(2+x)-4
c)4-5(3-x)=-x-(3-2x)
d)x-(7-2x)=2(x-1)+1
3[3+x]+2x=8-2[x-1]9+3x+2x=8-2x+23x+2x+2x=8+2-97x=1 /:7x=1/7
4x-5-[3x+6]=2[2+x]-44x-5-3x-6=4+2x-44x-3x-2x=4-4+5+6-1x=11 /:-1x= -11
4-5[3-x]= -x-[3-2x]4-15+5x= -x-3+2x5x+x-2x= -3-4+154x=8 /:4x=2
x-[7-2x]=2[x-1]+1x-7+2x=2x-2+1x+2x-2x= -2+1+7x=6
a) 3(3+x)+2x=8-2(x-1) 9 + 3x +2x = 8-2x-2 9 +5x = 6-2x 9 +7x = 6 7x = -3 x= 3/7
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3[3+x]+2x=8-2[x-1]
9+3x+2x=8-2x+2
3x+2x+2x=8+2-9
7x=1 /:7
x=1/7
4x-5-[3x+6]=2[2+x]-4
4x-5-3x-6=4+2x-4
4x-3x-2x=4-4+5+6
-1x=11 /:-1
x= -11
4-5[3-x]= -x-[3-2x]
4-15+5x= -x-3+2x
5x+x-2x= -3-4+15
4x=8 /:4
x=2
x-[7-2x]=2[x-1]+1
x-7+2x=2x-2+1
x+2x-2x= -2+1+7
x=6
a) 3(3+x)+2x=8-2(x-1)
9 + 3x +2x = 8-2x-2
9 +5x = 6-2x
9 +7x = 6
7x = -3
x= 3/7