Question

Write an equivalent equation that does not contain parentheses for 3(k-x) = -3x-9

Answer 1

3(k-x)= -3x-9
3k - 3x = -3x - 9 ← equation without parentheses
3k - 3x + 3x = - 9
3k = -9
k = -9/3 
k = -3  ← simplest form