(2.5x+7y)-(4.3x+9y)=

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Solution for (2.5x+7y)-(4.3x+9y)= equation:


Simplifying
(2.5x + 7y) + -1(4.3x + 9y) = 0

Remove parenthesis around (2.5x + 7y)
2.5x + 7y + -1(4.3x + 9y) = 0
2.5x + 7y + (4.3x * -1 + 9y * -1) = 0
2.5x + 7y + (-4.3x + -9y) = 0

Reorder the terms:
2.5x + -4.3x + 7y + -9y = 0

Combine like terms: 2.5x + -4.3x = -1.8x
-1.8x + 7y + -9y = 0

Combine like terms: 7y + -9y = -2y
-1.8x + -2y = 0

Solving
-1.8x + -2y = 0

Solving for variable 'x'.

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

Add '2y' to each side of the equation.
-1.8x + -2y + 2y = 0 + 2y

Combine like terms: -2y + 2y = 0
-1.8x + 0 = 0 + 2y
-1.8x = 0 + 2y
Remove the zero:
-1.8x = 2y

Divide each side by '-1.8'.
x = -1.111111111y

Simplifying
x = -1.111111111y

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