5a-3+3a=4a+21

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Solution for 5a-3+3a=4a+21 equation:


Simplifying
5a + -3 + 3a = 4a + 21

Reorder the terms:
-3 + 5a + 3a = 4a + 21

Combine like terms: 5a + 3a = 8a
-3 + 8a = 4a + 21

Reorder the terms:
-3 + 8a = 21 + 4a

Solving
-3 + 8a = 21 + 4a

Solving for variable 'a'.

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

Add '-4a' to each side of the equation.
-3 + 8a + -4a = 21 + 4a + -4a

Combine like terms: 8a + -4a = 4a
-3 + 4a = 21 + 4a + -4a

Combine like terms: 4a + -4a = 0
-3 + 4a = 21 + 0
-3 + 4a = 21

Add '3' to each side of the equation.
-3 + 3 + 4a = 21 + 3

Combine like terms: -3 + 3 = 0
0 + 4a = 21 + 3
4a = 21 + 3

Combine like terms: 21 + 3 = 24
4a = 24

Divide each side by '4'.
a = 6

Simplifying
a = 6

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