rozwiąż równania: a. 6x+8=4x+20 b. y+6+2y-4=14 c. 2(x+20)+2x=48 d. 3z-5=6-(2z-4) ;** będzie naj
a) 6x+8=4x+20
6x-4x=20-8
2x=12
x=6
b) y+6+2y-4=14
3y=14-6+4
3y=12
y=4
c) 2(x+20)+2x=48
2x+40+2x=48
4x=48-40
4x=8
x=2
d) 3z-5=6-(2z-4)
3z-5=6-2z+4
3z+2z=6+4+5
5z=15
z=3
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a) 6x+8=4x+20
6x-4x=20-8
2x=12
x=6
b) y+6+2y-4=14
3y=14-6+4
3y=12
y=4
c) 2(x+20)+2x=48
2x+40+2x=48
4x=48-40
4x=8
x=2
d) 3z-5=6-(2z-4)
3z-5=6-2z+4
3z+2z=6+4+5
5z=15
z=3