7a+3-2a=6+2a+9

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Solution for 7a+3-2a=6+2a+9 equation:


Simplifying
7a + 3 + -2a = 6 + 2a + 9

Reorder the terms:
3 + 7a + -2a = 6 + 2a + 9

Combine like terms: 7a + -2a = 5a
3 + 5a = 6 + 2a + 9

Reorder the terms:
3 + 5a = 6 + 9 + 2a

Combine like terms: 6 + 9 = 15
3 + 5a = 15 + 2a

Solving
3 + 5a = 15 + 2a

Solving for variable 'a'.

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

Add '-2a' to each side of the equation.
3 + 5a + -2a = 15 + 2a + -2a

Combine like terms: 5a + -2a = 3a
3 + 3a = 15 + 2a + -2a

Combine like terms: 2a + -2a = 0
3 + 3a = 15 + 0
3 + 3a = 15

Add '-3' to each side of the equation.
3 + -3 + 3a = 15 + -3

Combine like terms: 3 + -3 = 0
0 + 3a = 15 + -3
3a = 15 + -3

Combine like terms: 15 + -3 = 12
3a = 12

Divide each side by '3'.
a = 4

Simplifying
a = 4

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