0.4(a+2)=-28.4

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Solution for 0.4(a+2)=-28.4 equation:


Simplifying
0.4(a + 2) = -28.4

Reorder the terms:
0.4(2 + a) = -28.4
(2 * 0.4 + a * 0.4) = -28.4
(0.8 + 0.4a) = -28.4

Solving
0.8 + 0.4a = -28.4

Solving for variable 'a'.

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

Add '-0.8' to each side of the equation.
0.8 + -0.8 + 0.4a = -28.4 + -0.8

Combine like terms: 0.8 + -0.8 = 0.0
0.0 + 0.4a = -28.4 + -0.8
0.4a = -28.4 + -0.8

Combine like terms: -28.4 + -0.8 = -29.2
0.4a = -29.2

Divide each side by '0.4'.
a = -73

Simplifying
a = -73

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