3(8-c)-7=13(8-c)

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Solution for 3(8-c)-7=13(8-c) equation:


Simplifying
3(8 + -1c) + -7 = 13(8 + -1c)
(8 * 3 + -1c * 3) + -7 = 13(8 + -1c)
(24 + -3c) + -7 = 13(8 + -1c)

Reorder the terms:
24 + -7 + -3c = 13(8 + -1c)

Combine like terms: 24 + -7 = 17
17 + -3c = 13(8 + -1c)
17 + -3c = (8 * 13 + -1c * 13)
17 + -3c = (104 + -13c)

Solving
17 + -3c = 104 + -13c

Solving for variable 'c'.

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

Add '13c' to each side of the equation.
17 + -3c + 13c = 104 + -13c + 13c

Combine like terms: -3c + 13c = 10c
17 + 10c = 104 + -13c + 13c

Combine like terms: -13c + 13c = 0
17 + 10c = 104 + 0
17 + 10c = 104

Add '-17' to each side of the equation.
17 + -17 + 10c = 104 + -17

Combine like terms: 17 + -17 = 0
0 + 10c = 104 + -17
10c = 104 + -17

Combine like terms: 104 + -17 = 87
10c = 87

Divide each side by '10'.
c = 8.7

Simplifying
c = 8.7

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