Answer:
x=3
Step-by-step explanation:
x²+21x-72=0
(x-3)(x+24)=0
x=3 or x=-24(rejected)
∴x=3
Answer:
-12
Step-by-step explanation:
I promise it's right
Answer:
z=0
Step-by-step explanation:
1- subtract 7 from both sides
-3z=0
2- divide by -3
z = 0/-3
z=0
If this helped please mark as brainliest :)
I think the equation would be y=-x+1
Answer:
y = x - 3
Step-by-step explanation: