Algebra 1- x-2y=1 find for y

I got x= -2y  

1- x-2y=1

Cancel 1 on both sides.

−x−2y=0

Add 2y to both sides.

−x=2y

Multiply both sides by -1.

x=−2y

there if that helps :)

false

ajkdfbwladnfwisafrw

solution:

→c= a b , that is product of a and b is possible only when when a is m × n matrix and b is n × p matrix.

that is, number of columns of a= number of rows of b.

so, size of matrix , c= a b is , if a = (m × n)matrix

b= (n × p)matrix

then a b = [ (m × n)matrix] ×[   (n × p)matrix ]

→→c= a b= [m × p ] matrix

→→size of product a b will be equal to = number of rows of a × number of columns of b