10K-400=300

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Solution for 10K-400=300 equation: 


Simplifying
10K + -400 = 300

Reorder the terms:
-400 + 10K = 300

Solving
-400 + 10K = 300

Solving for variable 'K'.

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

Add '400' to each side of the equation.
-400 + 400 + 10K = 300 + 400

Combine like terms: -400 + 400 = 0
0 + 10K = 300 + 400
10K = 300 + 400

Combine like terms: 300 + 400 = 700
10K = 700

Divide each side by '10'.
K = 70

Simplifying
K = 70

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