4a=-5a+45

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Solution for 4a=-5a+45 equation: 


Simplifying
4a = -5a + 45

Reorder the terms:
4a = 45 + -5a

Solving
4a = 45 + -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.
4a + 5a = 45 + -5a + 5a

Combine like terms: 4a + 5a = 9a
9a = 45 + -5a + 5a

Combine like terms: -5a + 5a = 0
9a = 45 + 0
9a = 45

Divide each side by '9'.
a = 5

Simplifying
a = 5

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