19.99=y+1.21

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Solution for 19.99=y+1.21 equation:


Simplifying
19.99 = y + 1.21

Reorder the terms:
19.99 = 1.21 + y

Solving
19.99 = 1.21 + y

Solving for variable 'y'.

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

Add '-1y' to each side of the equation.
19.99 + -1y = 1.21 + y + -1y

Combine like terms: y + -1y = 0
19.99 + -1y = 1.21 + 0
19.99 + -1y = 1.21

Add '-19.99' to each side of the equation.
19.99 + -19.99 + -1y = 1.21 + -19.99

Combine like terms: 19.99 + -19.99 = 0.00
0.00 + -1y = 1.21 + -19.99
-1y = 1.21 + -19.99

Combine like terms: 1.21 + -19.99 = -18.78
-1y = -18.78

Divide each side by '-1'.
y = 18.78

Simplifying
y = 18.78

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