Answer:
Step-by-step explanation:
Step one add 21 to each sides of the equal sign the you get
3x = 18
Divide by 3 on each side of the equal sign then your answer is
6
X = 6
x=6
-21+3x=-3
+21 +21
3x=18
/3 /3
x = 6
well the answer is 481636 i'm assuming you want to raise it to the 2nd power after you divide
6940 divided by 10 = 694
694^2 =481636
B
answer is C
Because it gives clear distribution process.
636w
producto = ×
