Question

5x=8x-15

4x+1=2

y-5=3y-25

5x+6=10x+5

9y-11= -10x+12y

21-6x=27-8x

Answer 1

5x=8x-15

5x-8x=-15 

-3x=-15

x=-15/-3 

x=5 

 

4x+1=2

4x=2-1

x=1/4 

 

y-5=3y-25

y-3y=-25+5 

-2y=-20

2y=20

y=20/2

y=10 

 

5x+6=10x+5

5x-10x=5-6

-5x=-1 

x=1/5

 

9y-11= -10x+12y

 

21-6x=27-8x

8x-6x=27-21 

2x=6

x=6/2

x=3