7y-2y+3+4+3y=-20

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Solution for 7y-2y+3+4+3y=-20 equation:


Simplifying
7y + -2y + 3 + 4 + 3y = -20

Reorder the terms:
3 + 4 + 7y + -2y + 3y = -20

Combine like terms: 3 + 4 = 7
7 + 7y + -2y + 3y = -20

Combine like terms: 7y + -2y = 5y
7 + 5y + 3y = -20

Combine like terms: 5y + 3y = 8y
7 + 8y = -20

Solving
7 + 8y = -20

Solving for variable 'y'.

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

Add '-7' to each side of the equation.
7 + -7 + 8y = -20 + -7

Combine like terms: 7 + -7 = 0
0 + 8y = -20 + -7
8y = -20 + -7

Combine like terms: -20 + -7 = -27
8y = -27

Divide each side by '8'.
y = -3.375

Simplifying
y = -3.375

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