4.2(x+y)+3.3(x+y)+5x=0

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Solution for 4.2(x+y)+3.3(x+y)+5x=0 equation:


Simplifying
4.2(x + y) + 3.3(x + y) + 5x = 0
(x * 4.2 + y * 4.2) + 3.3(x + y) + 5x = 0
(4.2x + 4.2y) + 3.3(x + y) + 5x = 0
4.2x + 4.2y + (x * 3.3 + y * 3.3) + 5x = 0
4.2x + 4.2y + (3.3x + 3.3y) + 5x = 0

Reorder the terms:
4.2x + 3.3x + 5x + 4.2y + 3.3y = 0

Combine like terms: 4.2x + 3.3x = 7.5x
7.5x + 5x + 4.2y + 3.3y = 0

Combine like terms: 7.5x + 5x = 12.5x
12.5x + 4.2y + 3.3y = 0

Combine like terms: 4.2y + 3.3y = 7.5y
12.5x + 7.5y = 0

Solving
12.5x + 7.5y = 0

Solving for variable 'x'.

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

Add '-7.5y' to each side of the equation.
12.5x + 7.5y + -7.5y = 0 + -7.5y

Combine like terms: 7.5y + -7.5y = 0.0
12.5x + 0.0 = 0 + -7.5y
12.5x = 0 + -7.5y
Remove the zero:
12.5x = -7.5y

Divide each side by '12.5'.
x = -0.6y

Simplifying
x = -0.6y

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