Answer:
102
Step-by-step explanation:
lets say x=2
so,
2x+2 would be 4+2
x would be 2
and 3x+8 would be 6+8
add up the sums,
6+2+80+14
and you get 102
so your answer is 102
Hope this helps! :)
For me personally, the easiest way to do this is by isolating the x² term, and finding the square root of both sides. The hardest way (well actually, the longest way) would be to use the quadratic formula. It just complicates things unnecessarily.
Answer:
Commutative Property of Addition
Answer:
8
Step-by-step explanation:
mystery number= x
he divdes x by 2 and then subtracts 9 and gets -5. reverse the order to find x.
-5+9 which is 4 times 2 which is 8. x is 8
