0.1(x+31)=-2(7-x)

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Solution for 0.1(x+31)=-2(7-x) equation:


Simplifying
0.1(x + 31) = -2(7 + -1x)

Reorder the terms:
0.1(31 + x) = -2(7 + -1x)
(31 * 0.1 + x * 0.1) = -2(7 + -1x)
(3.1 + 0.1x) = -2(7 + -1x)
3.1 + 0.1x = (7 * -2 + -1x * -2)
3.1 + 0.1x = (-14 + 2x)

Solving
3.1 + 0.1x = -14 + 2x

Solving for variable 'x'.

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

Add '-2x' to each side of the equation.
3.1 + 0.1x + -2x = -14 + 2x + -2x

Combine like terms: 0.1x + -2x = -1.9x
3.1 + -1.9x = -14 + 2x + -2x

Combine like terms: 2x + -2x = 0
3.1 + -1.9x = -14 + 0
3.1 + -1.9x = -14

Add '-3.1' to each side of the equation.
3.1 + -3.1 + -1.9x = -14 + -3.1

Combine like terms: 3.1 + -3.1 = 0.0
0.0 + -1.9x = -14 + -3.1
-1.9x = -14 + -3.1

Combine like terms: -14 + -3.1 = -17.1
-1.9x = -17.1

Divide each side by '-1.9'.
x = 9

Simplifying
x = 9

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