y+4.2=-8.9-6.4

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Solution for y+4.2=-8.9-6.4 equation: 


Simplifying
y + 4.2 = -8.9 + -6.4

Reorder the terms:
4.2 + y = -8.9 + -6.4

Combine like terms: -8.9 + -6.4 = -15.3
4.2 + y = -15.3

Solving
4.2 + y = -15.3

Solving for variable 'y'.

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

Add '-4.2' to each side of the equation.
4.2 + -4.2 + y = -15.3 + -4.2

Combine like terms: 4.2 + -4.2 = 0.0
0.0 + y = -15.3 + -4.2
y = -15.3 + -4.2

Combine like terms: -15.3 + -4.2 = -19.5
y = -19.5

Simplifying
y = -19.5

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