Solve the system by the substitution method. Show your work.

Question

2y - x = 5
x2 + y2 - 25 = 0

Answer 1

2y - x = 5

x = 2y-5

Online "^" is used to indicate an exponent, e.g., x^2 = x squared.

x^2 + y^2 - 25 = 0

Substitute 2y-5 for x in the third equation and solve for y. Insert that value into the second equation to solve for x. Check by putting both values into the third equation.