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2x-7-[3-2x-2+4x]=x-11
2x-7-[1+2x]=x-11
4x-8=x-11
4x-x=-11+8
3x=3//:3
x=1
b) 10-[2(1-x)-3(2x+5)]=2(x+5)+1
10-2-2x-6x-15=2x+10+1
-2x-6x-2x=10+1-10+2+15
-10x=18//:(-10)
x=1,8
c) 8-3x-2[4-(x+5)]=3(x+1)-1
8-3x-2[-4x-20]=3x+3-1
8-3x+8x+40=3x+3-1
-3x+8x-3x=3-1-8-40
2x=-46//:2
x=-23
d) 1-2x-3[2x-(-5+x)]=x+4
1-2x-3[2x+5+x]=x+4
1-2x-3[3x+5]=x+4
1-2x-9x-15=x+4
-2x-9x-x=4-1+15
-12x=18//:(-12)
x=-1,5
2x-7-3+2x+2(1-2x)=x-11
2x-7-3+2x+2-4x=x-11
2x+2x-4x-x=7+3-2-11
-x=-3
x=3
b)10-[2(1-x)-3(2x+5)]=2(x+5)+1
10-2(1-x)+3(2x+5)=2x+10+1
10-2+2x+6x-15=2x+11
2x+6x-2x=-10+2+15+11
6x=18
x=3
c)8-3x-2[4-(x+5)]=3(x+1)-1
8-3x-2[4-x-5]=3x+3-1
8-3x-8+2x+10=3x+2
-3x+2x-3x=-8+8-10+2
-4x=-8
x=2
d)1-2x-3[2x-(-5+x)]=x+4
1-2x-3[2x+5x-x]=x+4
1-2x-6x-15x+3x=x+4
-2x-6x-15x+3x-x=-1+4
-21x=3
x=-³/₂₁=-¹/₇
2x - 7 - [3-2x-2+4x] = x - 11
2x - 7 - 3 + 2x + 2 - 4 x = x - 11
-x = -3
x = 3
b) 10-[2(1-x)-3(2x+5)]=2(x+5)+1
10 - [2 - 2x - 6x - 15] 2x + 10 + 1
10 - 2 + 2x + 6x + 15 = 2x + 10 +1
6x =-12
x = - 2
c) 8-3x-2[4-(x+5)]=3(x+1)-1
8 - 3x - 2[4-x-5]=3x+3 - 1
8 - 3x - 8 + 2x + 10 = 3x + 3 - 1
-4x = -8
x = 2
d) 1-2x-3[2x-(-5+x)]=x+4
1 - 2x - 3[2x + 5 - x] = x + 4
1 - 2x - 6x - 15 + 3x = x + 4
-6x = 18
x = -3
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