Answer: 8a+8b−12
Step-by-step explanation: 8a+5b−3+3(b−3)
=8a+5b+−3+(3)(b)+(3)(−3)
=8a+5b+−3+3b+−9
=(8a)+(5b+3b)+(−3+−9)
=8a+8b+−12
Answer:
39364.
Step-by-step explanation:
I guess its an = 4*(3)^(n-1)
r = 3, a1 = 4 and n = 9
Sum of n terms = a1 * (r^n - 1) / (r - 1)
so S9 = 4 *(3^9 - 1) / (3 - 1)
= 4 * (19683 - 1) / 2
= 78728/2
= 39364.
Hey!
3x-5=1
-5 to the other side as +5
3x=1+5
3x=6
x=2
Good luck
Answer:
Step-by-step explanation:
x-10+3=8
x-7=8
x=15
