-7(1+3k)=-20

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Solution for -7(1+3k)=-20 equation: 


Simplifying
-7(1 + 3k) = -20
(1 * -7 + 3k * -7) = -20
(-7 + -21k) = -20

Solving
-7 + -21k = -20

Solving for variable 'k'.

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

Add '7' to each side of the equation.
-7 + 7 + -21k = -20 + 7

Combine like terms: -7 + 7 = 0
0 + -21k = -20 + 7
-21k = -20 + 7

Combine like terms: -20 + 7 = -13
-21k = -13

Divide each side by '-21'.
k = 0.619047619

Simplifying
k = 0.619047619

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