-4(7k+8)=31-7k

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Solution for -4(7k+8)=31-7k equation:


Simplifying
-4(7k + 8) = 31 + -7k

Reorder the terms:
-4(8 + 7k) = 31 + -7k
(8 * -4 + 7k * -4) = 31 + -7k
(-32 + -28k) = 31 + -7k

Solving
-32 + -28k = 31 + -7k

Solving for variable 'k'.

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

Add '7k' to each side of the equation.
-32 + -28k + 7k = 31 + -7k + 7k

Combine like terms: -28k + 7k = -21k
-32 + -21k = 31 + -7k + 7k

Combine like terms: -7k + 7k = 0
-32 + -21k = 31 + 0
-32 + -21k = 31

Add '32' to each side of the equation.
-32 + 32 + -21k = 31 + 32

Combine like terms: -32 + 32 = 0
0 + -21k = 31 + 32
-21k = 31 + 32

Combine like terms: 31 + 32 = 63
-21k = 63

Divide each side by '-21'.
k = -3

Simplifying
k = -3

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