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

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


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

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

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

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

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

Solving
9x + -9y = 4x

Solving for variable 'x'.

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

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

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

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

Add '9y' to each side of the equation.
5x + -9y + 9y = 0 + 9y

Combine like terms: -9y + 9y = 0
5x + 0 = 0 + 9y
5x = 0 + 9y
Remove the zero:
5x = 9y

Divide each side by '5'.
x = 1.8y

Simplifying
x = 1.8y

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