-3-a=4-(1+7a)

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Solution for -3-a=4-(1+7a) equation:


Simplifying
-3 + -1a = 4 + -1(1 + 7a)
-3 + -1a = 4 + (1 * -1 + 7a * -1)
-3 + -1a = 4 + (-1 + -7a)

Combine like terms: 4 + -1 = 3
-3 + -1a = 3 + -7a

Solving
-3 + -1a = 3 + -7a

Solving for variable 'a'.

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

Add '7a' to each side of the equation.
-3 + -1a + 7a = 3 + -7a + 7a

Combine like terms: -1a + 7a = 6a
-3 + 6a = 3 + -7a + 7a

Combine like terms: -7a + 7a = 0
-3 + 6a = 3 + 0
-3 + 6a = 3

Add '3' to each side of the equation.
-3 + 3 + 6a = 3 + 3

Combine like terms: -3 + 3 = 0
0 + 6a = 3 + 3
6a = 3 + 3

Combine like terms: 3 + 3 = 6
6a = 6

Divide each side by '6'.
a = 1

Simplifying
a = 1

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