-2[5-3a]=56

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Solution for -2[5-3a]=56 equation: 


Simplifying
-2[5 + -3a] = 56
[5 * -2 + -3a * -2] = 56
[-10 + 6a] = 56

Solving
-10 + 6a = 56

Solving for variable 'a'.

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

Add '10' to each side of the equation.
-10 + 10 + 6a = 56 + 10

Combine like terms: -10 + 10 = 0
0 + 6a = 56 + 10
6a = 56 + 10

Combine like terms: 56 + 10 = 66
6a = 66

Divide each side by '6'.
a = 11

Simplifying
a = 11

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