-4(a-5)-[8-5(4a-5)]=

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Solution for -4(a-5)-[8-5(4a-5)]= equation:


Simplifying
-4(a + -5) + -1[8 + -5(4a + -5)] = 0

Reorder the terms:
-4(-5 + a) + -1[8 + -5(4a + -5)] = 0
(-5 * -4 + a * -4) + -1[8 + -5(4a + -5)] = 0
(20 + -4a) + -1[8 + -5(4a + -5)] = 0

Reorder the terms:
20 + -4a + -1[8 + -5(-5 + 4a)] = 0
20 + -4a + -1[8 + (-5 * -5 + 4a * -5)] = 0
20 + -4a + -1[8 + (25 + -20a)] = 0

Combine like terms: 8 + 25 = 33
20 + -4a + -1[33 + -20a] = 0
20 + -4a + [33 * -1 + -20a * -1] = 0
20 + -4a + [-33 + 20a] = 0

Reorder the terms:
20 + -33 + -4a + 20a = 0

Combine like terms: 20 + -33 = -13
-13 + -4a + 20a = 0

Combine like terms: -4a + 20a = 16a
-13 + 16a = 0

Solving
-13 + 16a = 0

Solving for variable 'a'.

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

Add '13' to each side of the equation.
-13 + 13 + 16a = 0 + 13

Combine like terms: -13 + 13 = 0
0 + 16a = 0 + 13
16a = 0 + 13

Combine like terms: 0 + 13 = 13
16a = 13

Divide each side by '16'.
a = 0.8125

Simplifying
a = 0.8125

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