(2x-3y+4)-(-4-5y+7)=

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Solution for (2x-3y+4)-(-4-5y+7)= equation:


Simplifying
(2x + -3y + 4) + -1(-4 + -5y + 7) = 0

Reorder the terms:
(4 + 2x + -3y) + -1(-4 + -5y + 7) = 0

Remove parenthesis around (4 + 2x + -3y)
4 + 2x + -3y + -1(-4 + -5y + 7) = 0

Reorder the terms:
4 + 2x + -3y + -1(-4 + 7 + -5y) = 0

Combine like terms: -4 + 7 = 3
4 + 2x + -3y + -1(3 + -5y) = 0
4 + 2x + -3y + (3 * -1 + -5y * -1) = 0
4 + 2x + -3y + (-3 + 5y) = 0

Reorder the terms:
4 + -3 + 2x + -3y + 5y = 0

Combine like terms: 4 + -3 = 1
1 + 2x + -3y + 5y = 0

Combine like terms: -3y + 5y = 2y
1 + 2x + 2y = 0

Solving
1 + 2x + 2y = 0

Solving for variable 'x'.

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

Add '-1' to each side of the equation.
1 + 2x + -1 + 2y = 0 + -1

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

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

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

Add '-2y' to each side of the equation.
2x + 2y + -2y = -1 + -2y

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

Divide each side by '2'.
x = -0.5 + -1y

Simplifying
x = -0.5 + -1y

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