6.9+4y=2(3-y)

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Solution for 6.9+4y=2(3-y) equation:


Simplifying
6.9 + 4y = 2(3 + -1y)
6.9 + 4y = (3 * 2 + -1y * 2)
6.9 + 4y = (6 + -2y)

Solving
6.9 + 4y = 6 + -2y

Solving for variable 'y'.

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

Add '2y' to each side of the equation.
6.9 + 4y + 2y = 6 + -2y + 2y

Combine like terms: 4y + 2y = 6y
6.9 + 6y = 6 + -2y + 2y

Combine like terms: -2y + 2y = 0
6.9 + 6y = 6 + 0
6.9 + 6y = 6

Add '-6.9' to each side of the equation.
6.9 + -6.9 + 6y = 6 + -6.9

Combine like terms: 6.9 + -6.9 = 0.0
0.0 + 6y = 6 + -6.9
6y = 6 + -6.9

Combine like terms: 6 + -6.9 = -0.9
6y = -0.9

Divide each side by '6'.
y = -0.15

Simplifying
y = -0.15

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