Answer:
5q^2 = 405
q^2 = 81
q = 9, -9
Step-by-step explanation:
{–9, 9}
5q² + 20 = 425
5q² = 405
q² = 81
x = 5 + 8y - 8
Combine like terms.
x = -3 + 8y
Add 3 to both sides.
x + 3 = 8y
Divide both sides by 8.
y =
90