7a-28-2a=19+3a+9

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Solution for 7a-28-2a=19+3a+9 equation:


Simplifying
7a + -28 + -2a = 19 + 3a + 9

Reorder the terms:
-28 + 7a + -2a = 19 + 3a + 9

Combine like terms: 7a + -2a = 5a
-28 + 5a = 19 + 3a + 9

Reorder the terms:
-28 + 5a = 19 + 9 + 3a

Combine like terms: 19 + 9 = 28
-28 + 5a = 28 + 3a

Solving
-28 + 5a = 28 + 3a

Solving for variable 'a'.

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

Add '-3a' to each side of the equation.
-28 + 5a + -3a = 28 + 3a + -3a

Combine like terms: 5a + -3a = 2a
-28 + 2a = 28 + 3a + -3a

Combine like terms: 3a + -3a = 0
-28 + 2a = 28 + 0
-28 + 2a = 28

Add '28' to each side of the equation.
-28 + 28 + 2a = 28 + 28

Combine like terms: -28 + 28 = 0
0 + 2a = 28 + 28
2a = 28 + 28

Combine like terms: 28 + 28 = 56
2a = 56

Divide each side by '2'.
a = 28

Simplifying
a = 28

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