7x+0.4y=-1

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Solution for 7x+0.4y=-1 equation: 


Simplifying
7x + 0.4y = -1

Solving
7x + 0.4y = -1

Solving for variable 'x'.

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

Add '-0.4y' to each side of the equation.
7x + 0.4y + -0.4y = -1 + -0.4y

Combine like terms: 0.4y + -0.4y = 0.0
7x + 0.0 = -1 + -0.4y
7x = -1 + -0.4y

Divide each side by '7'.
x = -0.1428571429 + -0.05714285714y

Simplifying
x = -0.1428571429 + -0.05714285714y

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