9+3a-4=5a+20-15

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Solution for 9+3a-4=5a+20-15 equation:


Simplifying
9 + 3a + -4 = 5a + 20 + -15

Reorder the terms:
9 + -4 + 3a = 5a + 20 + -15

Combine like terms: 9 + -4 = 5
5 + 3a = 5a + 20 + -15

Reorder the terms:
5 + 3a = 20 + -15 + 5a

Combine like terms: 20 + -15 = 5
5 + 3a = 5 + 5a

Add '-5' to each side of the equation.
5 + -5 + 3a = 5 + -5 + 5a

Combine like terms: 5 + -5 = 0
0 + 3a = 5 + -5 + 5a
3a = 5 + -5 + 5a

Combine like terms: 5 + -5 = 0
3a = 0 + 5a
3a = 5a

Solving
3a = 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.
3a + -5a = 5a + -5a

Combine like terms: 3a + -5a = -2a
-2a = 5a + -5a

Combine like terms: 5a + -5a = 0
-2a = 0

Divide each side by '-2'.
a = 0

Simplifying
a = 0

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