2.2x+21=3.6x+15.4

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Solution for 2.2x+21=3.6x+15.4 equation:


Simplifying
2.2x + 21 = 3.6x + 15.4

Reorder the terms:
21 + 2.2x = 3.6x + 15.4

Reorder the terms:
21 + 2.2x = 15.4 + 3.6x

Solving
21 + 2.2x = 15.4 + 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.
21 + 2.2x + -3.6x = 15.4 + 3.6x + -3.6x

Combine like terms: 2.2x + -3.6x = -1.4x
21 + -1.4x = 15.4 + 3.6x + -3.6x

Combine like terms: 3.6x + -3.6x = 0.0
21 + -1.4x = 15.4 + 0.0
21 + -1.4x = 15.4

Add '-21' to each side of the equation.
21 + -21 + -1.4x = 15.4 + -21

Combine like terms: 21 + -21 = 0
0 + -1.4x = 15.4 + -21
-1.4x = 15.4 + -21

Combine like terms: 15.4 + -21 = -5.6
-1.4x = -5.6

Divide each side by '-1.4'.
x = 4

Simplifying
x = 4

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