3(3-4d)=57
could you pleas show method
thanks
first expand
9 - 12d = 57
subtract 9 from both sides
-12d = 48
divide both sides by -12
d = -4
could you pleas show method
thanks
9 - 12d = 57
subtract 9 from both sides
-12d = 48
divide both sides by -12
d = -4