-12=0.3x-0.7x

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Solution for -12=0.3x-0.7x equation:


Simplifying
-12 = 0.3x + -0.7x

Combine like terms: 0.3x + -0.7x = -0.4x
-12 = -0.4x

Solving
-12 = -0.4x

Solving for variable 'x'.

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

Add '0.4x' to each side of the equation.
-12 + 0.4x = -0.4x + 0.4x

Combine like terms: -0.4x + 0.4x = 0.0
-12 + 0.4x = 0.0

Add '12' to each side of the equation.
-12 + 12 + 0.4x = 0.0 + 12

Combine like terms: -12 + 12 = 0
0 + 0.4x = 0.0 + 12
0.4x = 0.0 + 12

Combine like terms: 0.0 + 12 = 12
0.4x = 12

Divide each side by '0.4'.
x = 30

Simplifying
x = 30

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