7(4k-8)=-7k-21

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Solution for 7(4k-8)=-7k-21 equation:


Simplifying
7(4k + -8) = -7k + -21

Reorder the terms:
7(-8 + 4k) = -7k + -21
(-8 * 7 + 4k * 7) = -7k + -21
(-56 + 28k) = -7k + -21

Reorder the terms:
-56 + 28k = -21 + -7k

Solving
-56 + 28k = -21 + -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.
-56 + 28k + 7k = -21 + -7k + 7k

Combine like terms: 28k + 7k = 35k
-56 + 35k = -21 + -7k + 7k

Combine like terms: -7k + 7k = 0
-56 + 35k = -21 + 0
-56 + 35k = -21

Add '56' to each side of the equation.
-56 + 56 + 35k = -21 + 56

Combine like terms: -56 + 56 = 0
0 + 35k = -21 + 56
35k = -21 + 56

Combine like terms: -21 + 56 = 35
35k = 35

Divide each side by '35'.
k = 1

Simplifying
k = 1

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