3+(7+-2y)-2y=9

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Solution for 3+(7+-2y)-2y=9 equation:


Simplifying
3 + (7 + -2y) + -2y = 9

Remove parenthesis around (7 + -2y)
3 + 7 + -2y + -2y = 9

Combine like terms: 3 + 7 = 10
10 + -2y + -2y = 9

Combine like terms: -2y + -2y = -4y
10 + -4y = 9

Solving
10 + -4y = 9

Solving for variable 'y'.

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

Add '-10' to each side of the equation.
10 + -10 + -4y = 9 + -10

Combine like terms: 10 + -10 = 0
0 + -4y = 9 + -10
-4y = 9 + -10

Combine like terms: 9 + -10 = -1
-4y = -1

Divide each side by '-4'.
y = 0.25

Simplifying
y = 0.25

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