4a+5a-2=5+3-1

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Solution for 4a+5a-2=5+3-1 equation: 


Simplifying
4a + 5a + -2 = 5 + 3 + -1

Reorder the terms:
-2 + 4a + 5a = 5 + 3 + -1

Combine like terms: 4a + 5a = 9a
-2 + 9a = 5 + 3 + -1

Combine like terms: 5 + 3 = 8
-2 + 9a = 8 + -1

Combine like terms: 8 + -1 = 7
-2 + 9a = 7

Solving
-2 + 9a = 7

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 + 9a = 7 + 2

Combine like terms: -2 + 2 = 0
0 + 9a = 7 + 2
9a = 7 + 2

Combine like terms: 7 + 2 = 9
9a = 9

Divide each side by '9'.
a = 1

Simplifying
a = 1

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