2(5+f)=70

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Solution for 2(5+f)=70 equation: 


Simplifying
2(5 + f) = 70
(5 * 2 + f * 2) = 70
(10 + 2f) = 70

Solving
10 + 2f = 70

Solving for variable 'f'.

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

Add '-10' to each side of the equation.
10 + -10 + 2f = 70 + -10

Combine like terms: 10 + -10 = 0
0 + 2f = 70 + -10
2f = 70 + -10

Combine like terms: 70 + -10 = 60
2f = 60

Divide each side by '2'.
f = 30

Simplifying
f = 30

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