9-(-11a)-7=-1

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Solution for 9-(-11a)-7=-1 equation:


Simplifying
9 + -1(-11a) + -7 = -1

Remove parenthesis around (-11a)
9 + -1 * -11a + -7 = -1

Multiply -1 * -11
9 + 11a + -7 = -1

Reorder the terms:
9 + -7 + 11a = -1

Combine like terms: 9 + -7 = 2
2 + 11a = -1

Solving
2 + 11a = -1

Solving for variable 'a'.

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

Add '-2' to each side of the equation.
2 + -2 + 11a = -1 + -2

Combine like terms: 2 + -2 = 0
0 + 11a = -1 + -2
11a = -1 + -2

Combine like terms: -1 + -2 = -3
11a = -3

Divide each side by '11'.
a = -0.2727272727

Simplifying
a = -0.2727272727

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