Answer:
-380
Step-by-step explanation:
7 - 9(8 + 5f)
7 - 9(8 + 5(7))
7 - 9(8 + 35)
7 - 9(43)
7 - 387
Best of Luck!
7-9(8+5f) with f = 7
substitute the variable with the number
7-9(8+5 x 7)
do the parenthesis first using P.E.M.D.A.S.
7-9(8+35)
7-9(43)
7 - 9 x 43
