3-5y+7=15

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Solution for 3-5y+7=15 equation:


Simplifying
3 + -5y + 7 = 15

Reorder the terms:
3 + 7 + -5y = 15

Combine like terms: 3 + 7 = 10
10 + -5y = 15

Solving
10 + -5y = 15

Solving for variable 'y'.

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

Add '-10' to each side of the equation.
10 + -10 + -5y = 15 + -10

Combine like terms: 10 + -10 = 0
0 + -5y = 15 + -10
-5y = 15 + -10

Combine like terms: 15 + -10 = 5
-5y = 5

Divide each side by '-5'.
y = -1

Simplifying
y = -1

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