-2(a-1)-[7-4(4a-5)]=

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Solution for -2(a-1)-[7-4(4a-5)]= equation:


Simplifying
-2(a + -1) + -1[7 + -4(4a + -5)] = 0

Reorder the terms:
-2(-1 + a) + -1[7 + -4(4a + -5)] = 0
(-1 * -2 + a * -2) + -1[7 + -4(4a + -5)] = 0
(2 + -2a) + -1[7 + -4(4a + -5)] = 0

Reorder the terms:
2 + -2a + -1[7 + -4(-5 + 4a)] = 0
2 + -2a + -1[7 + (-5 * -4 + 4a * -4)] = 0
2 + -2a + -1[7 + (20 + -16a)] = 0

Combine like terms: 7 + 20 = 27
2 + -2a + -1[27 + -16a] = 0
2 + -2a + [27 * -1 + -16a * -1] = 0
2 + -2a + [-27 + 16a] = 0

Reorder the terms:
2 + -27 + -2a + 16a = 0

Combine like terms: 2 + -27 = -25
-25 + -2a + 16a = 0

Combine like terms: -2a + 16a = 14a
-25 + 14a = 0

Solving
-25 + 14a = 0

Solving for variable 'a'.

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

Add '25' to each side of the equation.
-25 + 25 + 14a = 0 + 25

Combine like terms: -25 + 25 = 0
0 + 14a = 0 + 25
14a = 0 + 25

Combine like terms: 0 + 25 = 25
14a = 25

Divide each side by '14'.
a = 1.785714286

Simplifying
a = 1.785714286

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