y-0.8y+13(y+9)=186

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Solution for y-0.8y+13(y+9)=186 equation:


Simplifying
y + -0.8y + 13(y + 9) = 186

Reorder the terms:
y + -0.8y + 13(9 + y) = 186
y + -0.8y + (9 * 13 + y * 13) = 186
y + -0.8y + (117 + 13y) = 186

Reorder the terms:
117 + y + -0.8y + 13y = 186

Combine like terms: y + -0.8y = 0.2y
117 + 0.2y + 13y = 186

Combine like terms: 0.2y + 13y = 13.2y
117 + 13.2y = 186

Solving
117 + 13.2y = 186

Solving for variable 'y'.

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

Add '-117' to each side of the equation.
117 + -117 + 13.2y = 186 + -117

Combine like terms: 117 + -117 = 0
0 + 13.2y = 186 + -117
13.2y = 186 + -117

Combine like terms: 186 + -117 = 69
13.2y = 69

Divide each side by '13.2'.
y = 5.227272727

Simplifying
y = 5.227272727

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