2x+8y=6, - 5x-20y=-15

need work because I don't understand

Infinitely many solutions.

Step-by-step explanation:

Step: Solve 2x + 8y = 6 for x:

2x + 8y = 6

2x + 8y + - 8y = 6 + - 8y (Add - 8y to both sides)

2x = - 8y + 6

2x/2 = (-8y + 6) / 2 (Divide both sides by 2)

x = - 4y + 3

Step: Substitute - 4y + 3 for x in - 5x - 20y = - 15:

-5x - 20y = - 15

-5 (-4y + 3) - 20y = - 15

-15 = - 15 (Simplify both sides of the equation)

-15 + 15 = - 15 + 15 (Add 15 to both sides)

0 = 0