y-12.9=7.4

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Solution for y-12.9=7.4 equation: 


Simplifying
y + -12.9 = 7.4

Reorder the terms:
-12.9 + y = 7.4

Solving
-12.9 + y = 7.4

Solving for variable 'y'.

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

Add '12.9' to each side of the equation.
-12.9 + 12.9 + y = 7.4 + 12.9

Combine like terms: -12.9 + 12.9 = 0.0
0.0 + y = 7.4 + 12.9
y = 7.4 + 12.9

Combine like terms: 7.4 + 12.9 = 20.3
y = 20.3

Simplifying
y = 20.3

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