F(3)+F(7)=F-(3+7)

Solution for F(3)+F(7)=F-(3+7) equation:

Simplifying
F(3) + F(7) = F + -1(3 + 7)

Reorder the terms for easier multiplication:
3F + F(7) = F + -1(3 + 7)

Reorder the terms for easier multiplication:
3F + 7F = F + -1(3 + 7)

Combine like terms: 3F + 7F = 10F
10F = F + -1(3 + 7)

Combine like terms: 3 + 7 = 10
10F = F + -1(10)

Multiply -1 * 10
10F = F + -10

Reorder the terms:
10F = -10 + F

Solving
10F = -10 + F

Solving for variable 'F'.

Move all terms containing F to the left, all other terms to the right.

Add '-1F' to each side of the equation.
10F + -1F = -10 + F + -1F

Combine like terms: 10F + -1F = 9F
9F = -10 + F + -1F

Combine like terms: F + -1F = 0
9F = -10 + 0
9F = -10

Divide each side by '9'.
F = -1.111111111

Simplifying
F = -1.111111111