7k+5+5k+1=90

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Solution for 7k+5+5k+1=90 equation:


Simplifying
7k + 5 + 5k + 1 = 90

Reorder the terms:
5 + 1 + 7k + 5k = 90

Combine like terms: 5 + 1 = 6
6 + 7k + 5k = 90

Combine like terms: 7k + 5k = 12k
6 + 12k = 90

Solving
6 + 12k = 90

Solving for variable 'k'.

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

Add '-6' to each side of the equation.
6 + -6 + 12k = 90 + -6

Combine like terms: 6 + -6 = 0
0 + 12k = 90 + -6
12k = 90 + -6

Combine like terms: 90 + -6 = 84
12k = 84

Divide each side by '12'.
k = 7

Simplifying
k = 7

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