30+60=20k+90

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Solution for 30+60=20k+90 equation:


Simplifying
30 + 60 = 20k + 90

Combine like terms: 30 + 60 = 90
90 = 20k + 90

Reorder the terms:
90 = 90 + 20k

Add '-90' to each side of the equation.
90 + -90 = 90 + -90 + 20k

Combine like terms: 90 + -90 = 0
0 = 90 + -90 + 20k

Combine like terms: 90 + -90 = 0
0 = 0 + 20k
0 = 20k

Solving
0 = 20k

Solving for variable 'k'.

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

Add '-20k' to each side of the equation.
0 + -20k = 20k + -20k
Remove the zero:
-20k = 20k + -20k

Combine like terms: 20k + -20k = 0
-20k = 0

Divide each side by '-20'.
k = 0

Simplifying
k = 0

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