0.7x+0.3=-0.4

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Solution for 0.7x+0.3=-0.4 equation: 


Simplifying
0.7x + 0.3 = -0.4

Reorder the terms:
0.3 + 0.7x = -0.4

Solving
0.3 + 0.7x = -0.4

Solving for variable 'x'.

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

Add '-0.3' to each side of the equation.
0.3 + -0.3 + 0.7x = -0.4 + -0.3

Combine like terms: 0.3 + -0.3 = 0.0
0.0 + 0.7x = -0.4 + -0.3
0.7x = -0.4 + -0.3

Combine like terms: -0.4 + -0.3 = -0.7
0.7x = -0.7

Divide each side by '0.7'.
x = -1

Simplifying
x = -1

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