8+9a-1=43

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Solution for 8+9a-1=43 equation: 


Simplifying
8 + 9a + -1 = 43

Reorder the terms:
8 + -1 + 9a = 43

Combine like terms: 8 + -1 = 7
7 + 9a = 43

Solving
7 + 9a = 43

Solving for variable 'a'.

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

Add '-7' to each side of the equation.
7 + -7 + 9a = 43 + -7

Combine like terms: 7 + -7 = 0
0 + 9a = 43 + -7
9a = 43 + -7

Combine like terms: 43 + -7 = 36
9a = 36

Divide each side by '9'.
a = 4

Simplifying
a = 4

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