-7(10+k)=42

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Solution for -7(10+k)=42 equation: 


Simplifying
-7(10 + k) = 42
(10 * -7 + k * -7) = 42
(-70 + -7k) = 42

Solving
-70 + -7k = 42

Solving for variable 'k'.

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

Add '70' to each side of the equation.
-70 + 70 + -7k = 42 + 70

Combine like terms: -70 + 70 = 0
0 + -7k = 42 + 70
-7k = 42 + 70

Combine like terms: 42 + 70 = 112
-7k = 112

Divide each side by '-7'.
k = -16

Simplifying
k = -16

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