What is the substitution method for 2x=8 and x+y=2

Step-by-step explanation:

You can use substitution method in two ways.

1 way: From the first equation you can express x by dividing the whole equation by 2:

and substitute this x-value into the second equation:

2 way: From the second equation you can express x:

and substitute it into the first one:

x = 2

step-by-step explanation:

if sr parallel to ba then the sides bc and ac are in proportion, that is

= ← substitute values

= ( cross- multiply )

27x = 6(4x + 1)

27x = 24x + 6 ( subtract 24x from both sides )

3x = 6 ( divide both sides by 3 )

x = 2

answer:

it is 28 degrees colder in detroit than philadelphia.

step-by-step explanation:

what number adds to 21  

-7 + ? = 21

-7 + 28 = 21

hope it