Answer:
A 3
Step-by-step explanation:
Let n = the number
a number decreased by 12
n-12
This is equal to 3 times the opposite =
3 times the opposite
3*(-n)
-3n
Setting the two parts equal
n-12 = -3n
Subtract n from each side
n-n-12 = -3n-n
-12 = -4n
Divide by -4
-12/-4 = -4n/-4
3 =n
With math always you photo math get a calculator help and not a human and then click explain work
Answer: 4
Step-by-step explanation:
so first 18+6 = 24
3 x 2= 6
24 divided by 6
is 4
Answer:
JK = 72
Step-by-step explanation:
JL = JK + KL = (4x+8) + (6x-6) = 10x + 2 = 162
--> x = (162-2)/10 = 16
JK = 4x + 8 = 4 . 16 + 8 = 72
