7=-2(3-y)

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Solution for 7=-2(3-y) equation:


Simplifying
7 = -2(3 + -1y)
7 = (3 * -2 + -1y * -2)
7 = (-6 + 2y)

Solving
7 = -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.
7 + -2y = -6 + 2y + -2y

Combine like terms: 2y + -2y = 0
7 + -2y = -6 + 0
7 + -2y = -6

Add '-7' to each side of the equation.
7 + -7 + -2y = -6 + -7

Combine like terms: 7 + -7 = 0
0 + -2y = -6 + -7
-2y = -6 + -7

Combine like terms: -6 + -7 = -13
-2y = -13

Divide each side by '-2'.
y = 6.5

Simplifying
y = 6.5

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