3(4y+7)-4(y-7)=

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Solution for 3(4y+7)-4(y-7)= equation:


Simplifying
3(4y + 7) + -4(y + -7) = 0

Reorder the terms:
3(7 + 4y) + -4(y + -7) = 0
(7 * 3 + 4y * 3) + -4(y + -7) = 0
(21 + 12y) + -4(y + -7) = 0

Reorder the terms:
21 + 12y + -4(-7 + y) = 0
21 + 12y + (-7 * -4 + y * -4) = 0
21 + 12y + (28 + -4y) = 0

Reorder the terms:
21 + 28 + 12y + -4y = 0

Combine like terms: 21 + 28 = 49
49 + 12y + -4y = 0

Combine like terms: 12y + -4y = 8y
49 + 8y = 0

Solving
49 + 8y = 0

Solving for variable 'y'.

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

Add '-49' to each side of the equation.
49 + -49 + 8y = 0 + -49

Combine like terms: 49 + -49 = 0
0 + 8y = 0 + -49
8y = 0 + -49

Combine like terms: 0 + -49 = -49
8y = -49

Divide each side by '8'.
y = -6.125

Simplifying
y = -6.125

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