(3k)+(k+10)=90

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Solution for (3k)+(k+10)=90 equation:


Simplifying
(3k) + (k + 10) = 90

Reorder the terms:
(3k) + (10 + k) = 90

Remove parenthesis around (10 + k)
(3k) + 10 + k = 90

Reorder the terms:
10 + (3k) + k = 90

Combine like terms: (3k) + k = 4k
10 + 4k = 90

Solving
10 + 4k = 90

Solving for variable 'k'.

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

Add '-10' to each side of the equation.
10 + -10 + 4k = 90 + -10

Combine like terms: 10 + -10 = 0
0 + 4k = 90 + -10
4k = 90 + -10

Combine like terms: 90 + -10 = 80
4k = 80

Divide each side by '4'.
k = 20

Simplifying
k = 20

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