9a-7-4a=33

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Solution for 9a-7-4a=33 equation: 


Simplifying
9a + -7 + -4a = 33

Reorder the terms:
-7 + 9a + -4a = 33

Combine like terms: 9a + -4a = 5a
-7 + 5a = 33

Solving
-7 + 5a = 33

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 + 5a = 33 + 7

Combine like terms: -7 + 7 = 0
0 + 5a = 33 + 7
5a = 33 + 7

Combine like terms: 33 + 7 = 40
5a = 40

Divide each side by '5'.
a = 8

Simplifying
a = 8

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