7x+21=12-4c

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Solution for 7x+21=12-4c equation:


Simplifying
7x + 21 = 12 + -4c

Reorder the terms:
21 + 7x = 12 + -4c

Solving
21 + 7x = 12 + -4c

Solving for variable 'x'.

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

Add '-21' to each side of the equation.
21 + -21 + 7x = 12 + -21 + -4c

Combine like terms: 21 + -21 = 0
0 + 7x = 12 + -21 + -4c
7x = 12 + -21 + -4c

Combine like terms: 12 + -21 = -9
7x = -9 + -4c

Divide each side by '7'.
x = -1.285714286 + -0.5714285714c

Simplifying
x = -1.285714286 + -0.5714285714c

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