-7(0.1x+0.2)-2.3=0.2

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Solution for -7(0.1x+0.2)-2.3=0.2 equation: 


Simplifying
-7(0.1x + 0.2) + -2.3 = 0.2

Reorder the terms:
-7(0.2 + 0.1x) + -2.3 = 0.2
(0.2 * -7 + 0.1x * -7) + -2.3 = 0.2
(-1.4 + -0.7x) + -2.3 = 0.2

Reorder the terms:
-1.4 + -2.3 + -0.7x = 0.2

Combine like terms: -1.4 + -2.3 = -3.7
-3.7 + -0.7x = 0.2

Solving
-3.7 + -0.7x = 0.2

Solving for variable 'x'.

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

Add '3.7' to each side of the equation.
-3.7 + 3.7 + -0.7x = 0.2 + 3.7

Combine like terms: -3.7 + 3.7 = 0.0
0.0 + -0.7x = 0.2 + 3.7
-0.7x = 0.2 + 3.7

Combine like terms: 0.2 + 3.7 = 3.9
-0.7x = 3.9

Divide each side by '-0.7'.
x = -5.571428571

Simplifying
x = -5.571428571

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