12-x=0.3(x+1)

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Solution for 12-x=0.3(x+1) equation:


Simplifying
12 + -1x = 0.3(x + 1)

Reorder the terms:
12 + -1x = 0.3(1 + x)
12 + -1x = (1 * 0.3 + x * 0.3)
12 + -1x = (0.3 + 0.3x)

Solving
12 + -1x = 0.3 + 0.3x

Solving for variable 'x'.

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

Add '-0.3x' to each side of the equation.
12 + -1x + -0.3x = 0.3 + 0.3x + -0.3x

Combine like terms: -1x + -0.3x = -1.3x
12 + -1.3x = 0.3 + 0.3x + -0.3x

Combine like terms: 0.3x + -0.3x = 0.0
12 + -1.3x = 0.3 + 0.0
12 + -1.3x = 0.3

Add '-12' to each side of the equation.
12 + -12 + -1.3x = 0.3 + -12

Combine like terms: 12 + -12 = 0
0 + -1.3x = 0.3 + -12
-1.3x = 0.3 + -12

Combine like terms: 0.3 + -12 = -11.7
-1.3x = -11.7

Divide each side by '-1.3'.
x = 9

Simplifying
x = 9

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