-31=7k+8k

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Solution for -31=7k+8k equation:


Simplifying
-31 = 7k + 8k

Combine like terms: 7k + 8k = 15k
-31 = 15k

Solving
-31 = 15k

Solving for variable 'k'.

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

Add '-15k' to each side of the equation.
-31 + -15k = 15k + -15k

Combine like terms: 15k + -15k = 0
-31 + -15k = 0

Add '31' to each side of the equation.
-31 + 31 + -15k = 0 + 31

Combine like terms: -31 + 31 = 0
0 + -15k = 0 + 31
-15k = 0 + 31

Combine like terms: 0 + 31 = 31
-15k = 31

Divide each side by '-15'.
k = -2.066666667

Simplifying
k = -2.066666667

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