-3[2y+7]=8

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Solution for -3[2y+7]=8 equation:


Simplifying
-3[2y + 7] = 8

Reorder the terms:
-3[7 + 2y] = 8
[7 * -3 + 2y * -3] = 8
[-21 + -6y] = 8

Solving
-21 + -6y = 8

Solving for variable 'y'.

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

Add '21' to each side of the equation.
-21 + 21 + -6y = 8 + 21

Combine like terms: -21 + 21 = 0
0 + -6y = 8 + 21
-6y = 8 + 21

Combine like terms: 8 + 21 = 29
-6y = 29

Divide each side by '-6'.
y = -4.833333333

Simplifying
y = -4.833333333

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