7y-3y+1=-15

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Solution for 7y-3y+1=-15 equation: 


Simplifying
7y + -3y + 1 = -15

Reorder the terms:
1 + 7y + -3y = -15

Combine like terms: 7y + -3y = 4y
1 + 4y = -15

Solving
1 + 4y = -15

Solving for variable 'y'.

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

Add '-1' to each side of the equation.
1 + -1 + 4y = -15 + -1

Combine like terms: 1 + -1 = 0
0 + 4y = -15 + -1
4y = -15 + -1

Combine like terms: -15 + -1 = -16
4y = -16

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

Simplifying
y = -4

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