-129-[7-8y-5(6y-2)]=

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Solution for -129-[7-8y-5(6y-2)]= equation:


Simplifying
-129 + -1[7 + -8y + -5(6y + -2)] = 0

Reorder the terms:
-129 + -1[7 + -8y + -5(-2 + 6y)] = 0
-129 + -1[7 + -8y + (-2 * -5 + 6y * -5)] = 0
-129 + -1[7 + -8y + (10 + -30y)] = 0

Reorder the terms:
-129 + -1[7 + 10 + -8y + -30y] = 0

Combine like terms: 7 + 10 = 17
-129 + -1[17 + -8y + -30y] = 0

Combine like terms: -8y + -30y = -38y
-129 + -1[17 + -38y] = 0
-129 + [17 * -1 + -38y * -1] = 0
-129 + [-17 + 38y] = 0

Combine like terms: -129 + -17 = -146
-146 + 38y = 0

Solving
-146 + 38y = 0

Solving for variable 'y'.

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

Add '146' to each side of the equation.
-146 + 146 + 38y = 0 + 146

Combine like terms: -146 + 146 = 0
0 + 38y = 0 + 146
38y = 0 + 146

Combine like terms: 0 + 146 = 146
38y = 146

Divide each side by '38'.
y = 3.842105263

Simplifying
y = 3.842105263

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