25=-9y+7

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Solution for 25=-9y+7 equation: 


Simplifying
25 = -9y + 7

Reorder the terms:
25 = 7 + -9y

Solving
25 = 7 + -9y

Solving for variable 'y'.

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

Add '9y' to each side of the equation.
25 + 9y = 7 + -9y + 9y

Combine like terms: -9y + 9y = 0
25 + 9y = 7 + 0
25 + 9y = 7

Add '-25' to each side of the equation.
25 + -25 + 9y = 7 + -25

Combine like terms: 25 + -25 = 0
0 + 9y = 7 + -25
9y = 7 + -25

Combine like terms: 7 + -25 = -18
9y = -18

Divide each side by '9'.
y = -2

Simplifying
y = -2

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