f = -10 because you add 8f on both sides causing it to be 10+f=0
Then, you subtract 10 from both sides to get f = -10
Answer:
f = -10
Step-by-step explanation:
Isolate the variable, f. Note the equal sign, what you do to one side, you do to the other. Do the opposite of PEMDAS.
Note that: PEMDAS is the order of operation, and stands for:
Parenthesis
Exponents (& roots)
Multiplication
Division
Addition
Subtraction
First, to isolate the variable, add 7f to both sides of the equation:
10 - 7f (+7f) = -8f (+7f)
10 = -8f + 7f
Combine like terms:
10 = (-8f + 7f)
10 = -f
Isolate the variable, f. Divide -1 from both sides:
(10)/-1 = (-f)/-1
f = 10/-1
f = -10
f = -10 is your answer.
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