0.5a+(a-1)-(0.2a+10)=0.2a-(0.2a-28)

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Solution for 0.5a+(a-1)-(0.2a+10)=0.2a-(0.2a-28) equation:


Simplifying
0.5a + (a + -1) + -1(0.2a + 10) = 0.2a + -1(0.2a + -28)

Reorder the terms:
0.5a + (-1 + a) + -1(0.2a + 10) = 0.2a + -1(0.2a + -28)

Remove parenthesis around (-1 + a)
0.5a + -1 + a + -1(0.2a + 10) = 0.2a + -1(0.2a + -28)

Reorder the terms:
0.5a + -1 + a + -1(10 + 0.2a) = 0.2a + -1(0.2a + -28)
0.5a + -1 + a + (10 * -1 + 0.2a * -1) = 0.2a + -1(0.2a + -28)
0.5a + -1 + a + (-10 + -0.2a) = 0.2a + -1(0.2a + -28)

Reorder the terms:
-1 + -10 + 0.5a + a + -0.2a = 0.2a + -1(0.2a + -28)

Combine like terms: -1 + -10 = -11
-11 + 0.5a + a + -0.2a = 0.2a + -1(0.2a + -28)

Combine like terms: 0.5a + a = 1.5a
-11 + 1.5a + -0.2a = 0.2a + -1(0.2a + -28)

Combine like terms: 1.5a + -0.2a = 1.3a
-11 + 1.3a = 0.2a + -1(0.2a + -28)

Reorder the terms:
-11 + 1.3a = 0.2a + -1(-28 + 0.2a)
-11 + 1.3a = 0.2a + (-28 * -1 + 0.2a * -1)
-11 + 1.3a = 0.2a + (28 + -0.2a)

Reorder the terms:
-11 + 1.3a = 28 + 0.2a + -0.2a

Combine like terms: 0.2a + -0.2a = 0.0
-11 + 1.3a = 28 + 0.0
-11 + 1.3a = 28

Solving
-11 + 1.3a = 28

Solving for variable 'a'.

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

Add '11' to each side of the equation.
-11 + 11 + 1.3a = 28 + 11

Combine like terms: -11 + 11 = 0
0 + 1.3a = 28 + 11
1.3a = 28 + 11

Combine like terms: 28 + 11 = 39
1.3a = 39

Divide each side by '1.3'.
a = 30

Simplifying
a = 30

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