4.2x-9=3.6x+12

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Solution for 4.2x-9=3.6x+12 equation:


Simplifying
4.2x + -9 = 3.6x + 12

Reorder the terms:
-9 + 4.2x = 3.6x + 12

Reorder the terms:
-9 + 4.2x = 12 + 3.6x

Solving
-9 + 4.2x = 12 + 3.6x

Solving for variable 'x'.

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

Add '-3.6x' to each side of the equation.
-9 + 4.2x + -3.6x = 12 + 3.6x + -3.6x

Combine like terms: 4.2x + -3.6x = 0.6x
-9 + 0.6x = 12 + 3.6x + -3.6x

Combine like terms: 3.6x + -3.6x = 0.0
-9 + 0.6x = 12 + 0.0
-9 + 0.6x = 12

Add '9' to each side of the equation.
-9 + 9 + 0.6x = 12 + 9

Combine like terms: -9 + 9 = 0
0 + 0.6x = 12 + 9
0.6x = 12 + 9

Combine like terms: 12 + 9 = 21
0.6x = 21

Divide each side by '0.6'.
x = 35

Simplifying
x = 35

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