-1+4a=9

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Solution for -1+4a=9 equation:


Simplifying
-1 + 4a = 9

Solving
-1 + 4a = 9

Solving for variable 'a'.

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

Add '1' to each side of the equation.
-1 + 1 + 4a = 9 + 1

Combine like terms: -1 + 1 = 0
0 + 4a = 9 + 1
4a = 9 + 1

Combine like terms: 9 + 1 = 10
4a = 10

Divide each side by '4'.
a = 2.5

Simplifying
a = 2.5

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