3x+2.5=x+3.9

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Solution for 3x+2.5=x+3.9 equation:


Simplifying
3x + 2.5 = x + 3.9

Reorder the terms:
2.5 + 3x = x + 3.9

Reorder the terms:
2.5 + 3x = 3.9 + x

Solving
2.5 + 3x = 3.9 + x

Solving for variable 'x'.

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

Add '-1x' to each side of the equation.
2.5 + 3x + -1x = 3.9 + x + -1x

Combine like terms: 3x + -1x = 2x
2.5 + 2x = 3.9 + x + -1x

Combine like terms: x + -1x = 0
2.5 + 2x = 3.9 + 0
2.5 + 2x = 3.9

Add '-2.5' to each side of the equation.
2.5 + -2.5 + 2x = 3.9 + -2.5

Combine like terms: 2.5 + -2.5 = 0.0
0.0 + 2x = 3.9 + -2.5
2x = 3.9 + -2.5

Combine like terms: 3.9 + -2.5 = 1.4
2x = 1.4

Divide each side by '2'.
x = 0.7

Simplifying
x = 0.7

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