perimeter of a square with a length of 6cm
26n − 12n = 21(1 − 18n) − 39(1 − 10n)
how many degrees in a triangle
sum of angle in a triangle
−19x + 5(x − 8) = −38(x + 8)
sum of ages of father and son is 50 if age of father is three times the age of the son what will be the age of son
4x=2x+6
prove 5 -√3 is an irrational number
solve x ^6 +3x^5 −41x^4 −87x^3 +400x^2 +444x−720=0
10=5-3x
