(5x+y)-(4x-9)=

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


Simplifying
(5x + y) + -1(4x + -9) = 0

Remove parenthesis around (5x + y)
5x + y + -1(4x + -9) = 0

Reorder the terms:
5x + y + -1(-9 + 4x) = 0
5x + y + (-9 * -1 + 4x * -1) = 0
5x + y + (9 + -4x) = 0

Reorder the terms:
9 + 5x + -4x + y = 0

Combine like terms: 5x + -4x = 1x
9 + 1x + y = 0

Solving
9 + 1x + y = 0

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 + 1x + -9 + y = 0 + -9

Reorder the terms:
9 + -9 + 1x + y = 0 + -9

Combine like terms: 9 + -9 = 0
0 + 1x + y = 0 + -9
1x + y = 0 + -9

Combine like terms: 0 + -9 = -9
1x + y = -9

Add '-1y' to each side of the equation.
1x + y + -1y = -9 + -1y

Combine like terms: y + -1y = 0
1x + 0 = -9 + -1y
1x = -9 + -1y

Divide each side by '1'.
x = -9 + -1y

Simplifying
x = -9 + -1y

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