3.9x-40=2.5x+9

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Solution for 3.9x-40=2.5x+9 equation:


Simplifying
3.9x + -40 = 2.5x + 9

Reorder the terms:
-40 + 3.9x = 2.5x + 9

Reorder the terms:
-40 + 3.9x = 9 + 2.5x

Solving
-40 + 3.9x = 9 + 2.5x

Solving for variable 'x'.

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

Add '-2.5x' to each side of the equation.
-40 + 3.9x + -2.5x = 9 + 2.5x + -2.5x

Combine like terms: 3.9x + -2.5x = 1.4x
-40 + 1.4x = 9 + 2.5x + -2.5x

Combine like terms: 2.5x + -2.5x = 0.0
-40 + 1.4x = 9 + 0.0
-40 + 1.4x = 9

Add '40' to each side of the equation.
-40 + 40 + 1.4x = 9 + 40

Combine like terms: -40 + 40 = 0
0 + 1.4x = 9 + 40
1.4x = 9 + 40

Combine like terms: 9 + 40 = 49
1.4x = 49

Divide each side by '1.4'.
x = 35

Simplifying
x = 35

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