Odpowiedź:
Szczegółowe wyjaśnienie:
3x+5 =6+2x
3x-2x= 6-5
x=1
spr... 3*1 +5= 6 +2*1
3+5= 6+2
8=8
L=P
******************************************
5 ( x-2 )= 3x+8
5x-10 =3x+8
5x-3x= 8 +10
2x= 18 /:2
x=9
spr.. 5*9 -10= 3*9 +8
45 - 10= 27+8
35 = 35
********************************************
- ( 2x +4)= 3- ( x-5)
-2x -4 = 3 -x +5
-2x +x= 3+5+4
-x= 12 /*(-1)
x= - 12
spr... -2 *(-12 )-4 = 3 - (-12)+5
24 -4 = 3 +12 +5
20= 20
************************************************
- 2 ( 2x-4 ) = -3 (x+1)
-4x +8 = -3x -3
-4x +3x = -3 -8
-x= -11 /*(-1)
x= 11
spr... -4 *11 +8= -3*11 -3
-44 +8= -33-3
-36 = - 36
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Odpowiedź:
Szczegółowe wyjaśnienie:
Odpowiedź:
3x+5 =6+2x
3x-2x= 6-5
x=1
spr... 3*1 +5= 6 +2*1
3+5= 6+2
8=8
L=P
******************************************
5 ( x-2 )= 3x+8
5x-10 =3x+8
5x-3x= 8 +10
2x= 18 /:2
x=9
spr.. 5*9 -10= 3*9 +8
45 - 10= 27+8
35 = 35
L=P
********************************************
- ( 2x +4)= 3- ( x-5)
-2x -4 = 3 -x +5
-2x +x= 3+5+4
-x= 12 /*(-1)
x= - 12
spr... -2 *(-12 )-4 = 3 - (-12)+5
24 -4 = 3 +12 +5
20= 20
L=P
************************************************
- 2 ( 2x-4 ) = -3 (x+1)
-4x +8 = -3x -3
-4x +3x = -3 -8
-x= -11 /*(-1)
x= 11
spr... -4 *11 +8= -3*11 -3
-44 +8= -33-3
-36 = - 36
L=P
Szczegółowe wyjaśnienie: