Question

4+2(x-1)=6 5-2(y+3)=8
-1+4(2z+3)=8 2y+3(4-y)=y 6(3y+2)-5(4y+6)=-6 -7(2z-3)-5(4-3z)=1 8(2x-1)+3(4-5x)=0 -4(x-2)=8-2(2x-5) x-4 +3(3-2x)=6(x-1) x-3=2(2-3x)
x/3=x-2/5 z+3/2-3 z-4/3=0 2+x/3+3-x/6=1 3/4x-x+1/2=x-3/4 y/2-3y/4=5y/6=y-1 -2x=5/6+5(x-2)/4-2(2x+1/3=1 3n-1/9-n-2/8=1/2 x/3+x-5/10=4x+3/5 2/3(n+3)-3/7(n+4)=1 2x+7/9-4=x-7/12

Answer 1

1+4(2z+3)=8
1+6z+12 = 8
6x = 8-1-12
6x = -5 |:6
x= - 5/6


2y+3(4-y)=y
2y+12-3y = y
2y-3y-y = -12
-2y = -12 |(-2)
y = 6


6(3y+2)-5(4y+6)=-6
18y+12-20y-30 = -6
18y-20y = -6-12+30
-2y = 12 |:(-2)
y = -6


-7(2z-3)-5(4-3z)=1
-14z+21-20+18z = 1
-14z+18z = 1-21+20
4z = 0 |:4
z = 0


8(2x-1)+3(4-5x)=0
16x-8+12-15x = 0
16x-15x = 8-12
x = -4


-4(x-2)=8-2(2x-5) 
-4x+8 = 8-4x+10
-4x+4x = 8+10-8
0 = 10
równanie sprzeczne


x-4 +3(3-2x)=6(x-1) 
x-4 + 9-6x = 6x-6
x-6x-6x = 6+4-9
-11x = 1 |:(-11)
x = -1/11


x-3=2(2-3x)
x-3 = 4-6x
x+6x = 4+3
7x = 7 |:7
x =1


x/3=x-2/5 |*15
5x = 15x-6
5x-15x = -6
-10x = -6 |:(-10)
x = 6/10 = 3/5


z+3/2-3z-4/3=0 |*6
6z+9-18z-8 = 0
6z-18z = -9+8
-12z = -1 |:(-12)
z = 1/12

2+x/3+3-x/6=1  |*6
12+2x+18-x = 6
2x-x = 6-12-18
x = -24


3/4x-x+1/2=x-3/4  |*4
3x-4x+2 = 4x-3
3x-4x-4x = -3-2
-5x = -5|:(-5)
x = 1


y/2-3y/4=5y/6=y-1   |*12
6y-9y = 10y-12
6y-9y-10y = -12
-13y = -12 |(-13)
y = 12/13


-2x=5/6+5(x-2)/4-2(2x+1/3=1
3n-1/9-n-2/8=1/2
x/3+x-5/10=4x+3/5
2/3(n+3)-3/7(n+4)=1
2x+7/9-4=x-7/12

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