2(4)-y=1

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Solution for 2(4)-y=1 equation: 


Simplifying
2(4) + -1y = 1

Multiply 2 * 4
8 + -1y = 1

Solving
8 + -1y = 1

Solving for variable 'y'.

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

Add '-8' to each side of the equation.
8 + -8 + -1y = 1 + -8

Combine like terms: 8 + -8 = 0
0 + -1y = 1 + -8
-1y = 1 + -8

Combine like terms: 1 + -8 = -7
-1y = -7

Divide each side by '-1'.
y = 7

Simplifying
y = 7

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