7x+7y-4x-y
=3x+6y
Combine like terms
7x - 4x = 3x
7y - y = 6y
Answer:
11 if you mean x^2
Step-by-step explanation:
Since we are solving for x, we need to just get x by its self. The only thing we have to do is get rid of the exponent of (^2). to do this, we have to take teh square root of both sides:
The square root of x^2 is x
The square root of 121 is 11
So the asnwer is x = 11
72, 36, 144
its skip a number times 2 times two
then the number you skipped, times two to get the one after the next one then times 3 then so on.