2(y-6)-4y+7=-21

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Solution for 2(y-6)-4y+7=-21 equation:


Simplifying
2(y + -6) + -4y + 7 = -21

Reorder the terms:
2(-6 + y) + -4y + 7 = -21
(-6 * 2 + y * 2) + -4y + 7 = -21
(-12 + 2y) + -4y + 7 = -21

Reorder the terms:
-12 + 7 + 2y + -4y = -21

Combine like terms: -12 + 7 = -5
-5 + 2y + -4y = -21

Combine like terms: 2y + -4y = -2y
-5 + -2y = -21

Solving
-5 + -2y = -21

Solving for variable 'y'.

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

Add '5' to each side of the equation.
-5 + 5 + -2y = -21 + 5

Combine like terms: -5 + 5 = 0
0 + -2y = -21 + 5
-2y = -21 + 5

Combine like terms: -21 + 5 = -16
-2y = -16

Divide each side by '-2'.
y = 8

Simplifying
y = 8

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