-9=9(4-a)

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Solution for -9=9(4-a) equation:


Simplifying
-9 = 9(4 + -1a)
-9 = (4 * 9 + -1a * 9)
-9 = (36 + -9a)

Solving
-9 = 36 + -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.
-9 + 9a = 36 + -9a + 9a

Combine like terms: -9a + 9a = 0
-9 + 9a = 36 + 0
-9 + 9a = 36

Add '9' to each side of the equation.
-9 + 9 + 9a = 36 + 9

Combine like terms: -9 + 9 = 0
0 + 9a = 36 + 9
9a = 36 + 9

Combine like terms: 36 + 9 = 45
9a = 45

Divide each side by '9'.
a = 5

Simplifying
a = 5

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