f(7a)=7a-7

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Solution for f(7a)=7a-7 equation:


Simplifying
f(7a) = 7a + -7

Remove parenthesis around (7a)
f * 7a = 7a + -7

Reorder the terms for easier multiplication:
7f * a = 7a + -7

Multiply f * a
7af = 7a + -7

Reorder the terms:
7af = -7 + 7a

Solving
7af = -7 + 7a

Solving for variable 'a'.

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

Add '-7a' to each side of the equation.
-7a + 7af = -7 + 7a + -7a

Combine like terms: 7a + -7a = 0
-7a + 7af = -7 + 0
-7a + 7af = -7

Reorder the terms:
7 + -7a + 7af = -7 + 7

Combine like terms: -7 + 7 = 0
7 + -7a + 7af = 0

Factor out the Greatest Common Factor (GCF), '7'.
7(1 + -1a + af) = 0

Ignore the factor 7.

Subproblem 1

Set the factor '(1 + -1a + af)' equal to zero and attempt to solve: Simplifying 1 + -1a + af = 0 Solving 1 + -1a + af = 0 Move all terms containing a to the left, all other terms to the right. Add '-1' to each side of the equation. 1 + -1a + -1 + af = 0 + -1 Reorder the terms: 1 + -1 + -1a + af = 0 + -1 Combine like terms: 1 + -1 = 0 0 + -1a + af = 0 + -1 -1a + af = 0 + -1 Combine like terms: 0 + -1 = -1 -1a + af = -1 The solution to this equation could not be determined. This subproblem is being ignored because a solution could not be determined. The solution to this equation could not be determined.

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