Rozwiąż równania: PROPORCJE! a. 3/x-2=4/2x+1 b.2/3=3x+2/2x-2 c.6x-1/x+1=2,3/1,2 d.-x/3x-1=2x/1-6x Prosze szybko! Z góry DZIEKI ;*
" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2024 KUDO.TIPS - All rights reserved.
a)
3(2x+1)=4(x-2)
6x+3=4x-8
6x-4x=-8-3
2x=-11
x=-5,5
b)
2(2x-2)=3(3x+2)
4x-4=9x+6
4x-9x=6+4
-5x=10
x=-2
c)
1,2(6x-1)=2,3(x+1)
7,2x-1,2=2,3x+2,3
7,2x-2,3x=2,3+1,2
4,9x=3,5
x=35/49=5/7
d)
-x(1-6x)=2x(3x-1)
-x+6x²=6x²-2x
-x+2x+6x²-6x²=0
x=0
a.
3/(x-2)=4/(2x+1)
3(2x+1) = 4(x-2)
6x + 3 = 4x - 8
6x - 4x = -8 - 3
2x = -11 /:2
x = -5,5
b.
2/3=(3x+2)/(2x-2)
2(2x-2) = 3(3x+2)
4x - 4 = 9x + 6
4x - 9x = 6 + 4
-5x = 10 /:(-5)
x = -2
c.
(6x-1)/(x+1)=2,3/1,2
1,2(6x-1) = 2,3(x+1)
7,2x - 1,2 = 2,3x + 2,3
7,2x - 2,3x = 2,3 + 1,2
4,9x = 3,5 /:4,9
x = 5/7
d.
-x/(3x-1)=2x/(1-6x)
-x(1-6x) = 2x(3x-1)
-x + 6x^2 = 6x^2 - 2x
-x + 6x^2 - 6x^2 + 2x = 0
x = 0