2a-(8a-1)-(a+2).5=9

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Solution for 2a-(8a-1)-(a+2).5=9 equation:


Simplifying
2a + -1(8a + -1) + -1(a + 2) * 0.5 = 9

Reorder the terms:
2a + -1(-1 + 8a) + -1(a + 2) * 0.5 = 9
2a + (-1 * -1 + 8a * -1) + -1(a + 2) * 0.5 = 9
2a + (1 + -8a) + -1(a + 2) * 0.5 = 9

Reorder the terms:
2a + 1 + -8a + -1(2 + a) * 0.5 = 9

Reorder the terms for easier multiplication:
2a + 1 + -8a + -1 * 0.5(2 + a) = 9

Multiply -1 * 0.5
2a + 1 + -8a + -0.5(2 + a) = 9
2a + 1 + -8a + (2 * -0.5 + a * -0.5) = 9
2a + 1 + -8a + (-1 + -0.5a) = 9

Reorder the terms:
1 + -1 + 2a + -8a + -0.5a = 9

Combine like terms: 1 + -1 = 0
0 + 2a + -8a + -0.5a = 9
2a + -8a + -0.5a = 9

Combine like terms: 2a + -8a = -6a
-6a + -0.5a = 9

Combine like terms: -6a + -0.5a = -6.5a
-6.5a = 9

Solving
-6.5a = 9

Solving for variable 'a'.

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

Divide each side by '-6.5'.
a = -1.384615385

Simplifying
a = -1.384615385

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