Answer:
6
Step-by-step explanation:
12+x=3x
2x=12
x=6
Answer:
$300
Step-by-step explanation:
y = 100x + 300
where X represents the amount of months.
Answer:
8
Step-by-step explanation:
don't ask how I got it I looked it up
Answer:
JM = 10
Step-by-step explanation:
Because MN║JL,

= 
2(5) = 1(2x + 4)
10 = 2x + 4
2x = 6
x = 3
JM = 2x + 4 = 2(3) + 4 = 6 + 4 = 10