4y+8-21=-18+3y+2

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Solution for 4y+8-21=-18+3y+2 equation:


Simplifying
4y + 8 + -21 = -18 + 3y + 2

Reorder the terms:
8 + -21 + 4y = -18 + 3y + 2

Combine like terms: 8 + -21 = -13
-13 + 4y = -18 + 3y + 2

Reorder the terms:
-13 + 4y = -18 + 2 + 3y

Combine like terms: -18 + 2 = -16
-13 + 4y = -16 + 3y

Solving
-13 + 4y = -16 + 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.
-13 + 4y + -3y = -16 + 3y + -3y

Combine like terms: 4y + -3y = 1y
-13 + 1y = -16 + 3y + -3y

Combine like terms: 3y + -3y = 0
-13 + 1y = -16 + 0
-13 + 1y = -16

Add '13' to each side of the equation.
-13 + 13 + 1y = -16 + 13

Combine like terms: -13 + 13 = 0
0 + 1y = -16 + 13
1y = -16 + 13

Combine like terms: -16 + 13 = -3
1y = -3

Divide each side by '1'.
y = -3

Simplifying
y = -3

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