Proszę o rozwiązanie wszystkich moich przykładów .
Rozwiąż równanie :
a) . 5 - 3
_______ = _________
x - 10 1 - 2x
b) . 2 2x + 1
___ = ___________
6 7x - 2
c) . 6 4
________ = ____________
9x + 2 6x + 1
d) . 2 1
__________ = ___________
3x + 1 x + 5
e) . x + 5 10 + 2x
___________ = ____________
2 4
f) . 2x + 1 2
____________ = ___________
x ² + 5 x
g) . x - ½ 3 - 2x
_________ = __________
¹/₁₂ ⅓
h) . 2x - 6 2
__________ = _____
x - 2 3
i) . 0,5 x - 3 0,7 x - 2
____________ = ____________
0,2 0,5
j) . 2 -x 5
________ = _________
0,2 x + 1 3
k) . 0,2 8
____________ = ________
0,5 x + 0,1 3x - 1
l) . 2x² + 1 3
__________ = _______
4x ² + 2 5
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a)
5-10x =-3x+30
-10x +3x =30-5
-7x =25
x= 25/7
b)14x - 4= 12x +6
14x -12 x =6+4
2x=10
x=5
c) 6 4
________ = ____________
9x + 2 6x + 1
12x +6 =36x + 8
-36x +12x =8-6
-24x = 2
x= -2/24
d)
2 1
__________ = ___________
3x + 1 x + 5
2x +10 =3x +1
-3x+2x =-10+1
-x=-9
x=9
e)
x + 5 10 + 2x
___________ = ____________
2 4
4x +20 =20 +4x
0=0
f)
2x + 1 2
____________ = ___________
x ² + 5 x
2x ² +x = 2x ² + 10
x=10
g) x - ½ 3 - 2x
_________ = __________
¹/₁₂ ⅓
⅓x -1/6 =1/4 - 1/6x I *3
1/3x -1/6x =1/4 - 1/6
2/6x-1/6x = 6/24 - 4/24
1/6x = 2/24 I*6
x=12/24 = 1/2
h)
2x - 6 2
__________ = _____
x - 2 3
6x- 18 =2x -4
6x -2x = -4 +18
4x= 14
x= 14/4
i)
0,5 x - 3 0,7 x - 2
____________ = ____________
0,2 0,5
0.25x - 1.5 = 0.14x - 0.4
0.25x - 0.14x = 1.5 -0.4
0.11x=1.1
x= 10
j)
2 -x 5
________ = _________
0,2 x + 1 3
6 -3x = x +5
-2x =-1
x= 1/2
k)
0,2 8
____________ = ________
0,5 x + 0,1 3x - 1
0.6x - 0.2 = 4x + 0.8
-3.6x = 1
x= -10/36
l)
2x² + 1 3
__________ = _______
4x ² + 2 5
10x² + 5 =12x² +6
2x² = 11 :2
x²= 5.5
x= pierwiastek z 5.5