-4.5a+3.2-(2a+0.4)+2.8a=

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Solution for -4.5a+3.2-(2a+0.4)+2.8a= equation: 


Simplifying
-4.5a + 3.2 + -1(2a + 0.4) + 2.8a = 0

Reorder the terms:
-4.5a + 3.2 + -1(0.4 + 2a) + 2.8a = 0
-4.5a + 3.2 + (0.4 * -1 + 2a * -1) + 2.8a = 0
-4.5a + 3.2 + (-0.4 + -2a) + 2.8a = 0

Reorder the terms:
3.2 + -0.4 + -4.5a + -2a + 2.8a = 0

Combine like terms: 3.2 + -0.4 = 2.8
2.8 + -4.5a + -2a + 2.8a = 0

Combine like terms: -4.5a + -2a = -6.5a
2.8 + -6.5a + 2.8a = 0

Combine like terms: -6.5a + 2.8a = -3.7a
2.8 + -3.7a = 0

Solving
2.8 + -3.7a = 0

Solving for variable 'a'.

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

Add '-2.8' to each side of the equation.
2.8 + -2.8 + -3.7a = 0 + -2.8

Combine like terms: 2.8 + -2.8 = 0.0
0.0 + -3.7a = 0 + -2.8
-3.7a = 0 + -2.8

Combine like terms: 0 + -2.8 = -2.8
-3.7a = -2.8

Divide each side by '-3.7'.
a = 0.7567567568

Simplifying
a = 0.7567567568

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