40+20-30x=12x

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Solution for 40+20-30x=12x equation:


Simplifying
40 + 20 + -30x = 12x

Combine like terms: 40 + 20 = 60
60 + -30x = 12x

Solving
60 + -30x = 12x

Solving for variable 'x'.

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

Add '-12x' to each side of the equation.
60 + -30x + -12x = 12x + -12x

Combine like terms: -30x + -12x = -42x
60 + -42x = 12x + -12x

Combine like terms: 12x + -12x = 0
60 + -42x = 0

Add '-60' to each side of the equation.
60 + -60 + -42x = 0 + -60

Combine like terms: 60 + -60 = 0
0 + -42x = 0 + -60
-42x = 0 + -60

Combine like terms: 0 + -60 = -60
-42x = -60

Divide each side by '-42'.
x = 1.428571429

Simplifying
x = 1.428571429

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