9x+-5+9+4y=21

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Solution for 9x+-5+9+4y=21 equation:


Simplifying
9x + -5 + 9 + 4y = 21

Reorder the terms:
-5 + 9 + 9x + 4y = 21

Combine like terms: -5 + 9 = 4
4 + 9x + 4y = 21

Solving
4 + 9x + 4y = 21

Solving for variable 'x'.

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

Add '-4' to each side of the equation.
4 + 9x + -4 + 4y = 21 + -4

Reorder the terms:
4 + -4 + 9x + 4y = 21 + -4

Combine like terms: 4 + -4 = 0
0 + 9x + 4y = 21 + -4
9x + 4y = 21 + -4

Combine like terms: 21 + -4 = 17
9x + 4y = 17

Add '-4y' to each side of the equation.
9x + 4y + -4y = 17 + -4y

Combine like terms: 4y + -4y = 0
9x + 0 = 17 + -4y
9x = 17 + -4y

Divide each side by '9'.
x = 1.888888889 + -0.4444444444y

Simplifying
x = 1.888888889 + -0.4444444444y

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