3x+2.8=-x+6.4

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Solution for 3x+2.8=-x+6.4 equation: 


Simplifying
3x + 2.8 = -1x + 6.4

Reorder the terms:
2.8 + 3x = -1x + 6.4

Reorder the terms:
2.8 + 3x = 6.4 + -1x

Solving
2.8 + 3x = 6.4 + -1x

Solving for variable 'x'.

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

Add 'x' to each side of the equation.
2.8 + 3x + x = 6.4 + -1x + x

Combine like terms: 3x + x = 4x
2.8 + 4x = 6.4 + -1x + x

Combine like terms: -1x + x = 0
2.8 + 4x = 6.4 + 0
2.8 + 4x = 6.4

Add '-2.8' to each side of the equation.
2.8 + -2.8 + 4x = 6.4 + -2.8

Combine like terms: 2.8 + -2.8 = 0.0
0.0 + 4x = 6.4 + -2.8
4x = 6.4 + -2.8

Combine like terms: 6.4 + -2.8 = 3.6
4x = 3.6

Divide each side by '4'.
x = 0.9

Simplifying
x = 0.9

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