-9=3+5a-7

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Solution for -9=3+5a-7 equation:


Simplifying
-9 = 3 + 5a + -7

Reorder the terms:
-9 = 3 + -7 + 5a

Combine like terms: 3 + -7 = -4
-9 = -4 + 5a

Solving
-9 = -4 + 5a

Solving for variable 'a'.

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

Add '-5a' to each side of the equation.
-9 + -5a = -4 + 5a + -5a

Combine like terms: 5a + -5a = 0
-9 + -5a = -4 + 0
-9 + -5a = -4

Add '9' to each side of the equation.
-9 + 9 + -5a = -4 + 9

Combine like terms: -9 + 9 = 0
0 + -5a = -4 + 9
-5a = -4 + 9

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

Divide each side by '-5'.
a = -1

Simplifying
a = -1

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