Question

A)2(x+1)=4
b) 4=2(x-1)
c)3(x-2)=x
d )3 (2x+3)=x-1
e) 4 (x-1)=3(x+1)
f) -(x-1)=2
g )x=1-3(x+1)
h)( x+1) - (x-1)=1
I ) 1/2 (x-1)=4
j) 1/4(2+x)=3/4x
k)-2 (x+1/2) - 3( x+1/3)=0
l)(x+2)pomnożyć 6 =0,5x
m)O,1(x+2) = 0,2x


Proszę o napisanie obliczenia ! Z góry dziękuje !

Answer 1

A)2(x+1)=4
2x + 2 = 4
2x = 4 -2
2x = 2
x = 2 :2
x = 1

b) 4=2(x-1)
4 = 2x -2
-2x = -2 -4
-2x = -6
x = (-6):(-2)
x = 3

c)3(x-2)=x
3x -6 = x
3x -x = 6
2x = 6
x = 6 :2
x = 3

d )3 (2x+3)=x-1
6x + 9 = x -1
6x -x = -1 -9
5x = -10
x = (-10): 5
x = -2

e) 4 (x-1)=3(x+1)
4x -4 = 3x + 3
4x -3x = 3 +4
x = 7

f) -(x-1)=2
-x +1 = 2
-x = 2 -1
-x = 1
x = -1

g )x=1-3(x+1)
x = 1 -3x -3
x +3x = -2
4x = -2
x = (-2): 4
x = -1/2

h)( x+1) - (x-1)=1
x + 1 -x + 1 = 1
0 + 2 = 1
0 = 1 -2
0 = -1 sprzeczne

I ) 1/2 (x-1)=4
1/2x - 1/2 = 4
1/2x = 4 + 1/2
1/2x = 9/2
x = 9/2*2
x = 9

j) 1/4(2+x)=3/4x
1/2 + 1/4x = 3/4x
1/4x -3/4x = -1/2
-2/4x = -1/2
-1/2x = -1/2
x = (-1/2): (-1/2)
x = 1

k)-2 (x+1/2) - 3( x+1/3)=0
-2x -1 -3x -1 = 0
-5x -2 = 0
-5x = 2
x = 2 : (-5)
x = -2/5

l)(x+2)pomnożyć 6 =0,5x
6x +12 = 0,5x
6x -0,5x = -12
5,5x = -12
x = (-12): 5,5
x = (-12)*(10/55)
x = (-12)*(2/11)
x = -24/11

m)O,1(x+2) = 0,2x
0,1x + 0,2 = 0,2x
0,1x - 0,2 x = -0,2
-0,1x = -0,2
x = (-0,2): (-0,1)
x = 2

Answer 2

A)2(x+1)=4
2x+2=4
2x=2
x=1
b) 4=2(x-1)
4=2x-2
2x=6
x=3
c)3(x-2)=x
3x-6=x
2x=6
x=3
d )3 (2x+3)=x-1
6x+9=x-1
5x=-10
x=-2
e) 4 (x-1)=3(x+1)
4x-4=3x+3
x=7
f) -(x-1)=2
-x+1=2
-x=1
x=-1
g )x=1-3(x+1)
x=1-3x-3
4x=-2
x=-1/2
h)( x+1) - (x-1)=1
x+1-x+1=1
0=-1
(coś źle napisałeś lub równanie bez rozwiązania)
I ) 1/2 (x-1)=4
1/2x-1/2=4
1/2x=4 1/2
x=9
j) 1/4(2+x)=3/4x
1/2+1/4x=3/4x
1/2x=1/2
x=1
k)-2 (x+1/2) - 3( x+1/3)=0
-2x-1-3x-1=0
-5x=2
x=-2/5
l)(x+2)pomnożyć 6 =0,5x
6x+12=0,5x
5,5x=-12
x=-2 2/11
m)O,1(x+2) = 0,2x
0,1x+0,2=0,2x
0,1x=0,2
x=2