y-7=x-9

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Solution for y-7=x-9 equation: 


Simplifying
y + -7 = x + -9

Reorder the terms:
-7 + y = x + -9

Reorder the terms:
-7 + y = -9 + x

Solving
-7 + y = -9 + x

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 + y = -9 + 7 + x

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

Combine like terms: -9 + 7 = -2
y = -2 + x

Simplifying
y = -2 + x

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