Question

Determine the solution of the system.

y = x + 6
y = 2x

Answer 1

substitute 2 y value 2x into first to get 2x = x + 6 solve for x you get x =6

Answer 2

2 y i meant second y value = 2x

Answer 3

could you possible write out the whole formula for me to understand better?

Answer 4

its not a formula...oh i see what your asking..
2x = x +6
subtract x from both sides
x = 6

Answer 5

oh i see now! thank you very much!!

Answer 6

when they give you two equations equaling something else but the variable is same you can equate the two equations to simplify