3+y=10-3(y+-1)

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Solution for 3+y=10-3(y+-1) equation:


Simplifying
3 + y = 10 + -3(y + -1)

Reorder the terms:
3 + y = 10 + -3(-1 + y)
3 + y = 10 + (-1 * -3 + y * -3)
3 + y = 10 + (3 + -3y)

Combine like terms: 10 + 3 = 13
3 + y = 13 + -3y

Solving
3 + y = 13 + -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.
3 + y + 3y = 13 + -3y + 3y

Combine like terms: y + 3y = 4y
3 + 4y = 13 + -3y + 3y

Combine like terms: -3y + 3y = 0
3 + 4y = 13 + 0
3 + 4y = 13

Add '-3' to each side of the equation.
3 + -3 + 4y = 13 + -3

Combine like terms: 3 + -3 = 0
0 + 4y = 13 + -3
4y = 13 + -3

Combine like terms: 13 + -3 = 10
4y = 10

Divide each side by '4'.
y = 2.5

Simplifying
y = 2.5

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