-7(0.1x+0.4)-1.2=-0.5

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Solution for -7(0.1x+0.4)-1.2=-0.5 equation: 


Simplifying
-7(0.1x + 0.4) + -1.2 = -0.5

Reorder the terms:
-7(0.4 + 0.1x) + -1.2 = -0.5
(0.4 * -7 + 0.1x * -7) + -1.2 = -0.5
(-2.8 + -0.7x) + -1.2 = -0.5

Reorder the terms:
-2.8 + -1.2 + -0.7x = -0.5

Combine like terms: -2.8 + -1.2 = -4
-4 + -0.7x = -0.5

Solving
-4 + -0.7x = -0.5

Solving for variable 'x'.

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

Add '4' to each side of the equation.
-4 + 4 + -0.7x = -0.5 + 4

Combine like terms: -4 + 4 = 0
0 + -0.7x = -0.5 + 4
-0.7x = -0.5 + 4

Combine like terms: -0.5 + 4 = 3.5
-0.7x = 3.5

Divide each side by '-0.7'.
x = -5

Simplifying
x = -5

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