-10c-(2c+5)-(-5c-9)=31

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Solution for -10c-(2c+5)-(-5c-9)=31 equation:


Simplifying
-10c + -1(2c + 5) + -1(-5c + -9) = 31

Reorder the terms:
-10c + -1(5 + 2c) + -1(-5c + -9) = 31
-10c + (5 * -1 + 2c * -1) + -1(-5c + -9) = 31
-10c + (-5 + -2c) + -1(-5c + -9) = 31

Reorder the terms:
-10c + -5 + -2c + -1(-9 + -5c) = 31
-10c + -5 + -2c + (-9 * -1 + -5c * -1) = 31
-10c + -5 + -2c + (9 + 5c) = 31

Reorder the terms:
-5 + 9 + -10c + -2c + 5c = 31

Combine like terms: -5 + 9 = 4
4 + -10c + -2c + 5c = 31

Combine like terms: -10c + -2c = -12c
4 + -12c + 5c = 31

Combine like terms: -12c + 5c = -7c
4 + -7c = 31

Solving
4 + -7c = 31

Solving for variable 'c'.

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

Add '-4' to each side of the equation.
4 + -4 + -7c = 31 + -4

Combine like terms: 4 + -4 = 0
0 + -7c = 31 + -4
-7c = 31 + -4

Combine like terms: 31 + -4 = 27
-7c = 27

Divide each side by '-7'.
c = -3.857142857

Simplifying
c = -3.857142857

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