9+2.5y-0.7y+1+6.4y=

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Solution for 9+2.5y-0.7y+1+6.4y= equation: 


Simplifying
9 + 2.5y + -0.7y + 1 + 6.4y = 0

Reorder the terms:
9 + 1 + 2.5y + -0.7y + 6.4y = 0

Combine like terms: 9 + 1 = 10
10 + 2.5y + -0.7y + 6.4y = 0

Combine like terms: 2.5y + -0.7y = 1.8y
10 + 1.8y + 6.4y = 0

Combine like terms: 1.8y + 6.4y = 8.2y
10 + 8.2y = 0

Solving
10 + 8.2y = 0

Solving for variable 'y'.

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

Add '-10' to each side of the equation.
10 + -10 + 8.2y = 0 + -10

Combine like terms: 10 + -10 = 0
0 + 8.2y = 0 + -10
8.2y = 0 + -10

Combine like terms: 0 + -10 = -10
8.2y = -10

Divide each side by '8.2'.
y = -1.219512195

Simplifying
y = -1.219512195

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