Question

8.
a) 12y-(y+5)=10y-1
b)2(u-5)+15=3(u-4)+10
c)-3(y/3+1)-2=4(1-y)
d)2(3a-2)-6=4,5(2a-1)+1/2

/-kreska ułamkowa

14.
a)2x-1/293x-2)=7/4-x
b)3x-2(1-2x)=0,5(3x+1,5)
c) 3 1/3x+8=4 2/5x-8
d) x/2+x/4+x/5=x-1

/-kreska ułamkowa

prosze jak najszybciej Dam naj!

Answer 1

-12y-60y=10y-1
-12y-60y-10y=-1
-82y=-1:(-82)
y=82

2u-10+15=3u-12+10
2u-3u=-10+15-12+10
-u=3:(-1)
u=-3

Answer 2

A)12y-(y+5)=10y-1
12y-y-5=10y-1
13y=10y+4
3y=4
y=4/3
b)2(u-5)+15=3(u-4)+10
2u-10+15=3u-12+10
2u+5=3u-2
u=7
c)-3(y/3+1)-2=4(1-y)
-3y/4-2=4-4y
-3y-8=16-16y
13y=24
y=24/13
d)2(3a-2)-6=4,5(2a-1)+1/2
6a-4-6=9a-4,5+½
6a-10=9a-4
-10=3a-4
-6=3a
a=-2