=7*1-7*2y

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Solution for =7*1-7*2y equation: 


Simplifying
0 = 7 * 1 + -7 * 2y

Multiply 7 * 1
0 = 7 + -7 * 2y

Multiply -7 * 2
0 = 7 + -14y

Solving
0 = 7 + -14y

Solving for variable 'y'.

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

Add '14y' to each side of the equation.
0 + 14y = 7 + -14y + 14y
Remove the zero:
14y = 7 + -14y + 14y

Combine like terms: -14y + 14y = 0
14y = 7 + 0
14y = 7

Divide each side by '14'.
y = 0.5

Simplifying
y = 0.5

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