8-4/5f=-14-2f
Multiply both sides by 5
40-4f=-70-10f
Move variable to left and change signs
-4f+10f=-70-40
Combine like terms
6x=-70-40
6f=-110
Divide both sides by 6
F=-55/3
She saves £400
She spends £640
You have to use this formuka to figure out this problem d=3.14r2
(m - 7)+ (5m - 15)
m+ 5m - 22
6m - 22
