Question

if the following system has a solution, what is the x coordinate of the solution 4x+8y=60 and x+8y=30

Answer 1

x - coordinate x = 10

Explanation:

given the two equations

4x + 8y = 60 → (1)

x + 8y = 30 → (2)

subtracting (2) from (1) term by term will eliminate y

(4x - x) + (8y - 8y) = 60 - 30

3x + 0 = 30

3x = 30 ( divide both sides by 3 )

x = 10

The x- coordinate of the solution is x = 10