18 - (-f) = 91 (With work please)

Mathematics

2 answers:

borishaifa [10]2 years ago

6 0

18 - (-f) = 91

Subtracting a negative value changes to addition:

18 + f = 91

Subtract 18 from both sides:

F = 73

FinnZ [79.3K]2 years ago

4 0

Answer:

f = 73

Step-by-step explanation:

Solve for f

18 - ( - f ) = 91

Remove the parantheses and change their sign.

18 + f = 91

subtract each side by 18

18 - 18 + f = 91 - 18

calculate

f = 73

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