(7x-2y)-(4x-9y)=

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Solution for (7x-2y)-(4x-9y)= equation:


Simplifying
(7x + -2y) + -1(4x + -9y) = 0

Remove parenthesis around (7x + -2y)
7x + -2y + -1(4x + -9y) = 0
7x + -2y + (4x * -1 + -9y * -1) = 0
7x + -2y + (-4x + 9y) = 0

Reorder the terms:
7x + -4x + -2y + 9y = 0

Combine like terms: 7x + -4x = 3x
3x + -2y + 9y = 0

Combine like terms: -2y + 9y = 7y
3x + 7y = 0

Solving
3x + 7y = 0

Solving for variable 'x'.

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

Add '-7y' to each side of the equation.
3x + 7y + -7y = 0 + -7y

Combine like terms: 7y + -7y = 0
3x + 0 = 0 + -7y
3x = 0 + -7y
Remove the zero:
3x = -7y

Divide each side by '3'.
x = -2.333333333y

Simplifying
x = -2.333333333y

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