3y+1=-4(y-9)

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Solution for 3y+1=-4(y-9) equation:


Simplifying
3y + 1 = -4(y + -9)

Reorder the terms:
1 + 3y = -4(y + -9)

Reorder the terms:
1 + 3y = -4(-9 + y)
1 + 3y = (-9 * -4 + y * -4)
1 + 3y = (36 + -4y)

Solving
1 + 3y = 36 + -4y

Solving for variable 'y'.

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

Add '4y' to each side of the equation.
1 + 3y + 4y = 36 + -4y + 4y

Combine like terms: 3y + 4y = 7y
1 + 7y = 36 + -4y + 4y

Combine like terms: -4y + 4y = 0
1 + 7y = 36 + 0
1 + 7y = 36

Add '-1' to each side of the equation.
1 + -1 + 7y = 36 + -1

Combine like terms: 1 + -1 = 0
0 + 7y = 36 + -1
7y = 36 + -1

Combine like terms: 36 + -1 = 35
7y = 35

Divide each side by '7'.
y = 5

Simplifying
y = 5

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