4=9-5a

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Solution for 4=9-5a equation:


Simplifying
4 = 9 + -5a

Solving
4 = 9 + -5a

Solving for variable 'a'.

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

Add '5a' to each side of the equation.
4 + 5a = 9 + -5a + 5a

Combine like terms: -5a + 5a = 0
4 + 5a = 9 + 0
4 + 5a = 9

Add '-4' to each side of the equation.
4 + -4 + 5a = 9 + -4

Combine like terms: 4 + -4 = 0
0 + 5a = 9 + -4
5a = 9 + -4

Combine like terms: 9 + -4 = 5
5a = 5

Divide each side by '5'.
a = 1

Simplifying
a = 1

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