3-10=2y

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Solution for 3-10=2y equation:


Simplifying
3 + -10 = 2y

Combine like terms: 3 + -10 = -7
-7 = 2y

Solving
-7 = 2y

Solving for variable 'y'.

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

Add '-2y' to each side of the equation.
-7 + -2y = 2y + -2y

Combine like terms: 2y + -2y = 0
-7 + -2y = 0

Add '7' to each side of the equation.
-7 + 7 + -2y = 0 + 7

Combine like terms: -7 + 7 = 0
0 + -2y = 0 + 7
-2y = 0 + 7

Combine like terms: 0 + 7 = 7
-2y = 7

Divide each side by '-2'.
y = -3.5

Simplifying
y = -3.5

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