(1.6)(4)=(y-1)

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Solution for (1.6)(4)=(y-1) equation: 


Simplifying
(1.6)(4) = (y + -1)

Multiply 1.6 * 4
6.4 = (y + -1)

Reorder the terms:
6.4 = (-1 + y)

Remove parenthesis around (-1 + y)
6.4 = -1 + y

Solving
6.4 = -1 + y

Solving for variable 'y'.

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

Add '-1y' to each side of the equation.
6.4 + -1y = -1 + y + -1y

Combine like terms: y + -1y = 0
6.4 + -1y = -1 + 0
6.4 + -1y = -1

Add '-6.4' to each side of the equation.
6.4 + -6.4 + -1y = -1 + -6.4

Combine like terms: 6.4 + -6.4 = 0.0
0.0 + -1y = -1 + -6.4
-1y = -1 + -6.4

Combine like terms: -1 + -6.4 = -7.4
-1y = -7.4

Divide each side by '-1'.
y = 7.4

Simplifying
y = 7.4

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