(5x-y)+(4x+7)=

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Solution for (5x-y)+(4x+7)= equation:


Simplifying
(5x + -1y) + (4x + 7) = 0

Remove parenthesis around (5x + -1y)
5x + -1y + (4x + 7) = 0

Reorder the terms:
5x + -1y + (7 + 4x) = 0

Remove parenthesis around (7 + 4x)
5x + -1y + 7 + 4x = 0

Reorder the terms:
7 + 5x + 4x + -1y = 0

Combine like terms: 5x + 4x = 9x
7 + 9x + -1y = 0

Solving
7 + 9x + -1y = 0

Solving for variable 'x'.

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

Add '-7' to each side of the equation.
7 + 9x + -7 + -1y = 0 + -7

Reorder the terms:
7 + -7 + 9x + -1y = 0 + -7

Combine like terms: 7 + -7 = 0
0 + 9x + -1y = 0 + -7
9x + -1y = 0 + -7

Combine like terms: 0 + -7 = -7
9x + -1y = -7

Add 'y' to each side of the equation.
9x + -1y + y = -7 + y

Combine like terms: -1y + y = 0
9x + 0 = -7 + y
9x = -7 + y

Divide each side by '9'.
x = -0.7777777778 + 0.1111111111y

Simplifying
x = -0.7777777778 + 0.1111111111y

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