1=1-7k-2k

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Solution for 1=1-7k-2k equation:


Simplifying
1 = 1 + -7k + -2k

Combine like terms: -7k + -2k = -9k
1 = 1 + -9k

Add '-1' to each side of the equation.
1 + -1 = 1 + -1 + -9k

Combine like terms: 1 + -1 = 0
0 = 1 + -1 + -9k

Combine like terms: 1 + -1 = 0
0 = 0 + -9k
0 = -9k

Solving
0 = -9k

Solving for variable 'k'.

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

Add '9k' to each side of the equation.
0 + 9k = -9k + 9k
Remove the zero:
9k = -9k + 9k

Combine like terms: -9k + 9k = 0
9k = 0

Divide each side by '9'.
k = 0

Simplifying
k = 0

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