(5x-2y+4)-(x+7y)=

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Solution for (5x-2y+4)-(x+7y)= equation:


Simplifying
(5x + -2y + 4) + -1(x + 7y) = 0

Reorder the terms:
(4 + 5x + -2y) + -1(x + 7y) = 0

Remove parenthesis around (4 + 5x + -2y)
4 + 5x + -2y + -1(x + 7y) = 0
4 + 5x + -2y + (x * -1 + 7y * -1) = 0
4 + 5x + -2y + (-1x + -7y) = 0

Reorder the terms:
4 + 5x + -1x + -2y + -7y = 0

Combine like terms: 5x + -1x = 4x
4 + 4x + -2y + -7y = 0

Combine like terms: -2y + -7y = -9y
4 + 4x + -9y = 0

Solving
4 + 4x + -9y = 0

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 + 4x + -4 + -9y = 0 + -4

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

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

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

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

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

Divide each side by '4'.
x = -1 + 2.25y

Simplifying
x = -1 + 2.25y

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