Rozwiąż równania: a.)-27+5,6=3,4y+0,2 b.)0,32+5=0,5z+0,6 c.)7(4z+3) - 6(5z+7)=0 d.)x/2 + x/2 + 3 = 4 e.)y/2 - y/4 - 1= 2 f.)1/2y + 1/3y - 2=3 g.) z - 52/6= 4 - 2/3
" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2024 KUDO.TIPS - All rights reserved.
a)-27+5,6=3,4y+0,2
-3,4y=0,2-5,6+27
-3,4y=21,6 /*10
-34y=216 /:(-34)
y=(-216/34)
y=-6 12/34 (12 i 34 skracam przez 2)
y=-6 6/17
b) 0,32+5=0,5z+0,6
-0,5z=0,6-5-0,32
-0,5z=-4,72 /*100
-50z=-472 /:(-50)
z=472/50
z=9 22/50 (22 i 50 skracam przez 2)
z=9 11/25
c)7(4z+3)-6(5z+7)=0
28z+21-30z-42=0
28z-30z=42-21
-2z=21 /:(-2)
z=-21/2
z=-10 1/2
d)x/2+x/2+3=4 /*2
x+x+6=8
2x=8-6
2x=2 /:2
x=1
e)y/2-y/4-1=2 /*4
2y-y-4=8
2y-y=8+4
y=12
f)1/2y + 1/3y - 2=3 /*6
3y+2y-12=18
5y=18+12
5y=30 /:5
y=30/5
y=6
g)z-52/6=4-2/3
z=4-2/3+52/6
z=24/6-4/6+52/6
z=72/6
z=12