X + x + 165 = 1315
2x + 165 = 1315
subtract 165 from both sides
2x = 1150
divide both sides by 2
x = 575
January 575
February 575 + 165 = 740
4a-2=a+4
+2 to both sides
4a=a+6
-a from both sides
3a=6
For this case we must solve the following system of equations:

We clear x of both equations:

We match:

We find the value of "x":

Thus, the solution of the system is:

Answer:

Answer:
144
Step-by-step explanation:
1296 divided by 9 = 144
9 times 144 = 1296