21+31y-33y+37y=-21+13-39y+29y+40y

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Solution for 21+31y-33y+37y=-21+13-39y+29y+40y equation:


Simplifying
21 + 31y + -33y + 37y = -21 + 13 + -39y + 29y + 40y

Combine like terms: 31y + -33y = -2y
21 + -2y + 37y = -21 + 13 + -39y + 29y + 40y

Combine like terms: -2y + 37y = 35y
21 + 35y = -21 + 13 + -39y + 29y + 40y

Combine like terms: -21 + 13 = -8
21 + 35y = -8 + -39y + 29y + 40y

Combine like terms: -39y + 29y = -10y
21 + 35y = -8 + -10y + 40y

Combine like terms: -10y + 40y = 30y
21 + 35y = -8 + 30y

Solving
21 + 35y = -8 + 30y

Solving for variable 'y'.

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

Add '-30y' to each side of the equation.
21 + 35y + -30y = -8 + 30y + -30y

Combine like terms: 35y + -30y = 5y
21 + 5y = -8 + 30y + -30y

Combine like terms: 30y + -30y = 0
21 + 5y = -8 + 0
21 + 5y = -8

Add '-21' to each side of the equation.
21 + -21 + 5y = -8 + -21

Combine like terms: 21 + -21 = 0
0 + 5y = -8 + -21
5y = -8 + -21

Combine like terms: -8 + -21 = -29
5y = -29

Divide each side by '5'.
y = -5.8

Simplifying
y = -5.8

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