f(7)=3(7x)-4

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Solution for f(7)=3(7x)-4 equation: 


Simplifying
f(7) = 3(7x) + -4

Reorder the terms for easier multiplication:
7f = 3(7x) + -4

Remove parenthesis around (7x)
7f = 3 * 7x + -4

Multiply 3 * 7
7f = 21x + -4

Reorder the terms:
7f = -4 + 21x

Solving
7f = -4 + 21x

Solving for variable 'f'.

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

Divide each side by '7'.
f = -0.5714285714 + 3x

Simplifying
f = -0.5714285714 + 3x

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