For an example when you need to regroup like for example
15
+9
_____
You will see 9+ 5 = 14 so you will need to regroup the one into the 1 and leave the 4 below the 5 and 9
I might not be answering your question though, because I need to know what equation is it
Step-by-step explanation:
3 (2x + 4y = 1)
2 (3x - 5y = 7)
=> 12y = 3
-10y = 14
22y = -9
divided bothsides
y = -9/22
To find x
substitute Y= -9/22
into 2x + 4y = 1
2x + 4(-9/22) = 1
2x -18/11 = 1
2x= 1 + 18/11
2x = (11 + 18)/11
2x = 29/11
x = 29/11/2
x= 29/22
You wanna first find the exterior angle which is 180 - 108 = 72.
360/72 = 5
5^12/5^6 Is the correct response. When equal numbers with different exponents are divided then the you must subtract the exponents.
Thus 12-6 = 6.