20+70=10k+100

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Solution for 20+70=10k+100 equation:


Simplifying
20 + 70 = 10k + 100

Combine like terms: 20 + 70 = 90
90 = 10k + 100

Reorder the terms:
90 = 100 + 10k

Solving
90 = 100 + 10k

Solving for variable 'k'.

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

Add '-10k' to each side of the equation.
90 + -10k = 100 + 10k + -10k

Combine like terms: 10k + -10k = 0
90 + -10k = 100 + 0
90 + -10k = 100

Add '-90' to each side of the equation.
90 + -90 + -10k = 100 + -90

Combine like terms: 90 + -90 = 0
0 + -10k = 100 + -90
-10k = 100 + -90

Combine like terms: 100 + -90 = 10
-10k = 10

Divide each side by '-10'.
k = -1

Simplifying
k = -1

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