6(80-y)+2y+105-(80-y)=340

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Solution for 6(80-y)+2y+105-(80-y)=340 equation:


Simplifying
6(80 + -1y) + 2y + 105 + -1(80 + -1y) = 340
(80 * 6 + -1y * 6) + 2y + 105 + -1(80 + -1y) = 340
(480 + -6y) + 2y + 105 + -1(80 + -1y) = 340
480 + -6y + 2y + 105 + (80 * -1 + -1y * -1) = 340
480 + -6y + 2y + 105 + (-80 + 1y) = 340

Reorder the terms:
480 + 105 + -80 + -6y + 2y + 1y = 340

Combine like terms: 480 + 105 = 585
585 + -80 + -6y + 2y + 1y = 340

Combine like terms: 585 + -80 = 505
505 + -6y + 2y + 1y = 340

Combine like terms: -6y + 2y = -4y
505 + -4y + 1y = 340

Combine like terms: -4y + 1y = -3y
505 + -3y = 340

Solving
505 + -3y = 340

Solving for variable 'y'.

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

Add '-505' to each side of the equation.
505 + -505 + -3y = 340 + -505

Combine like terms: 505 + -505 = 0
0 + -3y = 340 + -505
-3y = 340 + -505

Combine like terms: 340 + -505 = -165
-3y = -165

Divide each side by '-3'.
y = 55

Simplifying
y = 55

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