-5[6a-3-7(a+1)]=3a-1

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Solution for -5[6a-3-7(a+1)]=3a-1 equation:


Simplifying
-5[6a + -3 + -7(a + 1)] = 3a + -1

Reorder the terms:
-5[6a + -3 + -7(1 + a)] = 3a + -1
-5[6a + -3 + (1 * -7 + a * -7)] = 3a + -1
-5[6a + -3 + (-7 + -7a)] = 3a + -1

Reorder the terms:
-5[-3 + -7 + 6a + -7a] = 3a + -1

Combine like terms: -3 + -7 = -10
-5[-10 + 6a + -7a] = 3a + -1

Combine like terms: 6a + -7a = -1a
-5[-10 + -1a] = 3a + -1
[-10 * -5 + -1a * -5] = 3a + -1
[50 + 5a] = 3a + -1

Reorder the terms:
50 + 5a = -1 + 3a

Solving
50 + 5a = -1 + 3a

Solving for variable 'a'.

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

Add '-3a' to each side of the equation.
50 + 5a + -3a = -1 + 3a + -3a

Combine like terms: 5a + -3a = 2a
50 + 2a = -1 + 3a + -3a

Combine like terms: 3a + -3a = 0
50 + 2a = -1 + 0
50 + 2a = -1

Add '-50' to each side of the equation.
50 + -50 + 2a = -1 + -50

Combine like terms: 50 + -50 = 0
0 + 2a = -1 + -50
2a = -1 + -50

Combine like terms: -1 + -50 = -51
2a = -51

Divide each side by '2'.
a = -25.5

Simplifying
a = -25.5

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