2b=c
9*(x+ 2)
" 5(x+2) " is.
2(-6n)
2g
3x
x-2
__n_ 2
[Number of players]/2
x+2=
1/2 n
2x - 2
A constant in an algebraic expression is a number that does not change. For example x + 2 The 2 is a constant (does not change) x is a variable (can take on any value)