3a+7-9-7=

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Solution for 3a+7-9-7= equation:


Simplifying
3a + 7 + -9 + -7 = 0

Reorder the terms:
7 + -9 + -7 + 3a = 0

Combine like terms: 7 + -9 = -2
-2 + -7 + 3a = 0

Combine like terms: -2 + -7 = -9
-9 + 3a = 0

Solving
-9 + 3a = 0

Solving for variable 'a'.

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

Add '9' to each side of the equation.
-9 + 9 + 3a = 0 + 9

Combine like terms: -9 + 9 = 0
0 + 3a = 0 + 9
3a = 0 + 9

Combine like terms: 0 + 9 = 9
3a = 9

Divide each side by '3'.
a = 3

Simplifying
a = 3

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