7(c-9)=9(2-8)+4c

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Solution for 7(c-9)=9(2-8)+4c equation:


Simplifying
7(c + -9) = 9(2 + -8) + 4c

Reorder the terms:
7(-9 + c) = 9(2 + -8) + 4c
(-9 * 7 + c * 7) = 9(2 + -8) + 4c
(-63 + 7c) = 9(2 + -8) + 4c

Combine like terms: 2 + -8 = -6
-63 + 7c = 9(-6) + 4c

Multiply 9 * -6
-63 + 7c = -54 + 4c

Solving
-63 + 7c = -54 + 4c

Solving for variable 'c'.

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

Add '-4c' to each side of the equation.
-63 + 7c + -4c = -54 + 4c + -4c

Combine like terms: 7c + -4c = 3c
-63 + 3c = -54 + 4c + -4c

Combine like terms: 4c + -4c = 0
-63 + 3c = -54 + 0
-63 + 3c = -54

Add '63' to each side of the equation.
-63 + 63 + 3c = -54 + 63

Combine like terms: -63 + 63 = 0
0 + 3c = -54 + 63
3c = -54 + 63

Combine like terms: -54 + 63 = 9
3c = 9

Divide each side by '3'.
c = 3

Simplifying
c = 3

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