7y+12=4y-(y+1)

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Solution for 7y+12=4y-(y+1) equation:


Simplifying
7y + 12 = 4y + -1(y + 1)

Reorder the terms:
12 + 7y = 4y + -1(y + 1)

Reorder the terms:
12 + 7y = 4y + -1(1 + y)
12 + 7y = 4y + (1 * -1 + y * -1)
12 + 7y = 4y + (-1 + -1y)

Reorder the terms:
12 + 7y = -1 + 4y + -1y

Combine like terms: 4y + -1y = 3y
12 + 7y = -1 + 3y

Solving
12 + 7y = -1 + 3y

Solving for variable 'y'.

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

Add '-3y' to each side of the equation.
12 + 7y + -3y = -1 + 3y + -3y

Combine like terms: 7y + -3y = 4y
12 + 4y = -1 + 3y + -3y

Combine like terms: 3y + -3y = 0
12 + 4y = -1 + 0
12 + 4y = -1

Add '-12' to each side of the equation.
12 + -12 + 4y = -1 + -12

Combine like terms: 12 + -12 = 0
0 + 4y = -1 + -12
4y = -1 + -12

Combine like terms: -1 + -12 = -13
4y = -13

Divide each side by '4'.
y = -3.25

Simplifying
y = -3.25

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