3f+9-7z-12=4

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Solution for 3f+9-7z-12=4 equation:


Simplifying
3f + 9 + -7z + -12 = 4

Reorder the terms:
9 + -12 + 3f + -7z = 4

Combine like terms: 9 + -12 = -3
-3 + 3f + -7z = 4

Solving
-3 + 3f + -7z = 4

Solving for variable 'f'.

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

Add '3' to each side of the equation.
-3 + 3f + 3 + -7z = 4 + 3

Reorder the terms:
-3 + 3 + 3f + -7z = 4 + 3

Combine like terms: -3 + 3 = 0
0 + 3f + -7z = 4 + 3
3f + -7z = 4 + 3

Combine like terms: 4 + 3 = 7
3f + -7z = 7

Add '7z' to each side of the equation.
3f + -7z + 7z = 7 + 7z

Combine like terms: -7z + 7z = 0
3f + 0 = 7 + 7z
3f = 7 + 7z

Divide each side by '3'.
f = 2.333333333 + 2.333333333z

Simplifying
f = 2.333333333 + 2.333333333z

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