7x-9+3y=D

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Solution for 7x-9+3y=D equation:


Simplifying
7x + -9 + 3y = D

Reorder the terms:
-9 + 7x + 3y = D

Solving
-9 + 7x + 3y = D

Solving for variable 'x'.

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

Add '9' to each side of the equation.
-9 + 7x + 9 + 3y = 9 + D

Reorder the terms:
-9 + 9 + 7x + 3y = 9 + D

Combine like terms: -9 + 9 = 0
0 + 7x + 3y = 9 + D
7x + 3y = 9 + D

Add '-3y' to each side of the equation.
7x + 3y + -3y = 9 + D + -3y

Combine like terms: 3y + -3y = 0
7x + 0 = 9 + D + -3y
7x = 9 + D + -3y

Divide each side by '7'.
x = 1.285714286 + 0.1428571429D + -0.4285714286y

Simplifying
x = 1.285714286 + 0.1428571429D + -0.4285714286y

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