3a+(4a-1)=9

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Solution for 3a+(4a-1)=9 equation:


Simplifying
3a + (4a + -1) = 9

Reorder the terms:
3a + (-1 + 4a) = 9

Remove parenthesis around (-1 + 4a)
3a + -1 + 4a = 9

Reorder the terms:
-1 + 3a + 4a = 9

Combine like terms: 3a + 4a = 7a
-1 + 7a = 9

Solving
-1 + 7a = 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 + 7a = 9 + 1

Combine like terms: -1 + 1 = 0
0 + 7a = 9 + 1
7a = 9 + 1

Combine like terms: 9 + 1 = 10
7a = 10

Divide each side by '7'.
a = 1.428571429

Simplifying
a = 1.428571429

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