Question

str.24/14

a)3x-1=5x

b)y-3=9-y

str25/16

a)2(5x-1)=8

b)-3(x-2)=-9

Answer 1

a)3x-1=5x

3x-5x=1

-2x=1/(-2)

x=-1/2

b)y-3=9-y

y+y=9+3

2y=12/2

y=6

str25/16

a)2(5x-1)=8

10x-2=8

10x=8+2

10x=10/10

x=1

b)-3(x-2)=-9

-3x+6=-9

-3x=-9-6

-3x=-15/(-3)

x=5

 

Answer 2

A)3x-1=5x 3x+5x=1 8x=1 x=0,125 b)y-3=9-y y+y=9+3 2y=12 y=6 a)2(5x-1)=8 (5x-1)=8-2 (5x-1)=6 5x=6-1 5x=5 x=1 b)-3(x-2)=-9 (x-2)=-9+3 (x-2)=-6 x=-6-2 x=-8