x+7=-0.4

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Solution for x+7=-0.4 equation: 


Simplifying
x + 7 = -0.4

Reorder the terms:
7 + x = -0.4

Solving
7 + x = -0.4

Solving for variable 'x'.

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

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

Combine like terms: 7 + -7 = 0
0 + x = -0.4 + -7
x = -0.4 + -7

Combine like terms: -0.4 + -7 = -7.4
x = -7.4

Simplifying
x = -7.4

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