5+0.5(7-y)=1.2y-7(y-0.8)

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Solution for 5+0.5(7-y)=1.2y-7(y-0.8) equation:


Simplifying
5 + 0.5(7 + -1y) = 1.2y + -7(y + -0.8)
5 + (7 * 0.5 + -1y * 0.5) = 1.2y + -7(y + -0.8)
5 + (3.5 + -0.5y) = 1.2y + -7(y + -0.8)

Combine like terms: 5 + 3.5 = 8.5
8.5 + -0.5y = 1.2y + -7(y + -0.8)

Reorder the terms:
8.5 + -0.5y = 1.2y + -7(-0.8 + y)
8.5 + -0.5y = 1.2y + (-0.8 * -7 + y * -7)
8.5 + -0.5y = 1.2y + (5.6 + -7y)

Reorder the terms:
8.5 + -0.5y = 5.6 + 1.2y + -7y

Combine like terms: 1.2y + -7y = -5.8y
8.5 + -0.5y = 5.6 + -5.8y

Solving
8.5 + -0.5y = 5.6 + -5.8y

Solving for variable 'y'.

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

Add '5.8y' to each side of the equation.
8.5 + -0.5y + 5.8y = 5.6 + -5.8y + 5.8y

Combine like terms: -0.5y + 5.8y = 5.3y
8.5 + 5.3y = 5.6 + -5.8y + 5.8y

Combine like terms: -5.8y + 5.8y = 0.0
8.5 + 5.3y = 5.6 + 0.0
8.5 + 5.3y = 5.6

Add '-8.5' to each side of the equation.
8.5 + -8.5 + 5.3y = 5.6 + -8.5

Combine like terms: 8.5 + -8.5 = 0.0
0.0 + 5.3y = 5.6 + -8.5
5.3y = 5.6 + -8.5

Combine like terms: 5.6 + -8.5 = -2.9
5.3y = -2.9

Divide each side by '5.3'.
y = -0.5471698113

Simplifying
y = -0.5471698113

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