-6.6=7.8y-6.8y+6.4

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Solution for -6.6=7.8y-6.8y+6.4 equation: 


Simplifying
-6.6 = 7.8y + -6.8y + 6.4

Reorder the terms:
-6.6 = 6.4 + 7.8y + -6.8y

Combine like terms: 7.8y + -6.8y = 1y
-6.6 = 6.4 + 1y

Solving
-6.6 = 6.4 + 1y

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.
-6.6 + -1y = 6.4 + 1y + -1y

Combine like terms: 1y + -1y = 0
-6.6 + -1y = 6.4 + 0
-6.6 + -1y = 6.4

Add '6.6' to each side of the equation.
-6.6 + 6.6 + -1y = 6.4 + 6.6

Combine like terms: -6.6 + 6.6 = 0.0
0.0 + -1y = 6.4 + 6.6
-1y = 6.4 + 6.6

Combine like terms: 6.4 + 6.6 = 13
-1y = 13

Divide each side by '-1'.
y = -13

Simplifying
y = -13

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