3.5x-7.2=2.1x-4

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Solution for 3.5x-7.2=2.1x-4 equation:


Simplifying
3.5x + -7.2 = 2.1x + -4

Reorder the terms:
-7.2 + 3.5x = 2.1x + -4

Reorder the terms:
-7.2 + 3.5x = -4 + 2.1x

Solving
-7.2 + 3.5x = -4 + 2.1x

Solving for variable 'x'.

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

Add '-2.1x' to each side of the equation.
-7.2 + 3.5x + -2.1x = -4 + 2.1x + -2.1x

Combine like terms: 3.5x + -2.1x = 1.4x
-7.2 + 1.4x = -4 + 2.1x + -2.1x

Combine like terms: 2.1x + -2.1x = 0.0
-7.2 + 1.4x = -4 + 0.0
-7.2 + 1.4x = -4

Add '7.2' to each side of the equation.
-7.2 + 7.2 + 1.4x = -4 + 7.2

Combine like terms: -7.2 + 7.2 = 0.0
0.0 + 1.4x = -4 + 7.2
1.4x = -4 + 7.2

Combine like terms: -4 + 7.2 = 3.2
1.4x = 3.2

Divide each side by '1.4'.
x = 2.285714286

Simplifying
x = 2.285714286

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