SZYBKO DAM NAJ ZA ROZWIAZANIE WSZYSTKIEGO POPRAWNIE Rozwiąż równanie :
a) 4x+3=2x-9
b) 3x-4=jedna druga x +8
c) x-6=5x-2
d) 1-2x=4+x
e) 8x+jedna druga = 4-x
f) jedna druga x -4 =2-x
g) 2*(3x+4)=8
h) 3*(2-5x)= -9
i) -2*(x-6)=4
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a) 4x+3=2x-9
4x - 2x = -9 -3
2x= -12/: 2
x =- 6
b) 3x-4=jedna druga x +8
3x -1/2 x = 8 + 4
2,5 x = 12/: 2,5
x = 4,8
c) x-6=5x-2
x - 5 x = - 2 + 6
- 4 x = 4 / :( - 4 )
x =-1
d) 1-2x=4+x
-2x -x = 4 -1
-3x= 3/: -3
x = -1
e) 8x+jedna druga = 4-x
8x +x = 4 - 1/2
9x = 3,5/: 9
x=0,3 ( 8)
f) jedna druga x -4 =2-x
0,5 x + x = 2 + 4
1,5 x = 6/: 1,5
x = 4
g) 2*(3x+4)=8
6x + 8= 8
6x= 8-8
6x=0
x= 0
h) 3*(2-5x)= -9
6 - 15x = -9
-15x = -9 -6
-15x= -15 /: -15
x= 1
i) -2*(x-6)=4
-2x + 12 = 4
-2x= 4-12
-2x= -8 /:-2
x= 4