Answer:
r = -3
Step-by-step explanation:
Add the like terms: 8r = -24
Isolate r by dividing each side by 8: r = -24/8
Simplify: r = -3
Hope this helps
Answer: a²= b²+c²
Step-by-step explanation:
Pythagorean theorem states the sum of the square of the other sides of Right angled triangle equals to the square of the longest side (hypotenus) of such triangle