0.4(2a+.5)=3[0.2a+(-2)]-4

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Solution for 0.4(2a+.5)=3[0.2a+(-2)]-4 equation:


Simplifying
0.4(2a + 0.5) = 3[0.2a + (-2)] + -4

Reorder the terms:
0.4(0.5 + 2a) = 3[0.2a + (-2)] + -4
(0.5 * 0.4 + 2a * 0.4) = 3[0.2a + (-2)] + -4
(0.2 + 0.8a) = 3[0.2a + (-2)] + -4
0.2 + 0.8a = 3[0.2a + -2] + -4

Reorder the terms:
0.2 + 0.8a = 3[-2 + 0.2a] + -4
0.2 + 0.8a = [-2 * 3 + 0.2a * 3] + -4
0.2 + 0.8a = [-6 + 0.6a] + -4

Reorder the terms:
0.2 + 0.8a = -6 + -4 + 0.6a

Combine like terms: -6 + -4 = -10
0.2 + 0.8a = -10 + 0.6a

Solving
0.2 + 0.8a = -10 + 0.6a

Solving for variable 'a'.

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

Add '-0.6a' to each side of the equation.
0.2 + 0.8a + -0.6a = -10 + 0.6a + -0.6a

Combine like terms: 0.8a + -0.6a = 0.2a
0.2 + 0.2a = -10 + 0.6a + -0.6a

Combine like terms: 0.6a + -0.6a = 0.0
0.2 + 0.2a = -10 + 0.0
0.2 + 0.2a = -10

Add '-0.2' to each side of the equation.
0.2 + -0.2 + 0.2a = -10 + -0.2

Combine like terms: 0.2 + -0.2 = 0.0
0.0 + 0.2a = -10 + -0.2
0.2a = -10 + -0.2

Combine like terms: -10 + -0.2 = -10.2
0.2a = -10.2

Divide each side by '0.2'.
a = -51

Simplifying
a = -51

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