2=0.1x-0.3x-7

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Solution for 2=0.1x-0.3x-7 equation:


Simplifying
2 = 0.1x + -0.3x + -7

Reorder the terms:
2 = -7 + 0.1x + -0.3x

Combine like terms: 0.1x + -0.3x = -0.2x
2 = -7 + -0.2x

Solving
2 = -7 + -0.2x

Solving for variable 'x'.

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

Add '0.2x' to each side of the equation.
2 + 0.2x = -7 + -0.2x + 0.2x

Combine like terms: -0.2x + 0.2x = 0.0
2 + 0.2x = -7 + 0.0
2 + 0.2x = -7

Add '-2' to each side of the equation.
2 + -2 + 0.2x = -7 + -2

Combine like terms: 2 + -2 = 0
0 + 0.2x = -7 + -2
0.2x = -7 + -2

Combine like terms: -7 + -2 = -9
0.2x = -9

Divide each side by '0.2'.
x = -45

Simplifying
x = -45

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