These are like terms, meaning that they are completely the same disregarding the coefficient.
To combine like terms, add the coefficients.
16+(-12)=4
Final answer: 4x
The square root of 144 is 12
\left[x \right] = \left[ 6\right][x]=[6] totally answer
N6+5=n-10
n6=n-15
n5=-15
n=-3
hope this helps:)
