2f+5=-2f-21

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Solution for 2f+5=-2f-21 equation:


Simplifying
2f + 5 = -2f + -21

Reorder the terms:
5 + 2f = -2f + -21

Reorder the terms:
5 + 2f = -21 + -2f

Solving
5 + 2f = -21 + -2f

Solving for variable 'f'.

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

Add '2f' to each side of the equation.
5 + 2f + 2f = -21 + -2f + 2f

Combine like terms: 2f + 2f = 4f
5 + 4f = -21 + -2f + 2f

Combine like terms: -2f + 2f = 0
5 + 4f = -21 + 0
5 + 4f = -21

Add '-5' to each side of the equation.
5 + -5 + 4f = -21 + -5

Combine like terms: 5 + -5 = 0
0 + 4f = -21 + -5
4f = -21 + -5

Combine like terms: -21 + -5 = -26
4f = -26

Divide each side by '4'.
f = -6.5

Simplifying
f = -6.5

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