-7(2+k)=21

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Solution for -7(2+k)=21 equation: 


Simplifying
-7(2 + k) = 21
(2 * -7 + k * -7) = 21
(-14 + -7k) = 21

Solving
-14 + -7k = 21

Solving for variable 'k'.

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

Add '14' to each side of the equation.
-14 + 14 + -7k = 21 + 14

Combine like terms: -14 + 14 = 0
0 + -7k = 21 + 14
-7k = 21 + 14

Combine like terms: 21 + 14 = 35
-7k = 35

Divide each side by '-7'.
k = -5

Simplifying
k = -5

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