-18=9(a+1)

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Solution for -18=9(a+1) equation:


Simplifying
-18 = 9(a + 1)

Reorder the terms:
-18 = 9(1 + a)
-18 = (1 * 9 + a * 9)
-18 = (9 + 9a)

Solving
-18 = 9 + 9a

Solving for variable 'a'.

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

Add '-9a' to each side of the equation.
-18 + -9a = 9 + 9a + -9a

Combine like terms: 9a + -9a = 0
-18 + -9a = 9 + 0
-18 + -9a = 9

Add '18' to each side of the equation.
-18 + 18 + -9a = 9 + 18

Combine like terms: -18 + 18 = 0
0 + -9a = 9 + 18
-9a = 9 + 18

Combine like terms: 9 + 18 = 27
-9a = 27

Divide each side by '-9'.
a = -3

Simplifying
a = -3

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