8a+5=3a-21

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Solution for 8a+5=3a-21 equation:


Simplifying
8a + 5 = 3a + -21

Reorder the terms:
5 + 8a = 3a + -21

Reorder the terms:
5 + 8a = -21 + 3a

Solving
5 + 8a = -21 + 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.
5 + 8a + -3a = -21 + 3a + -3a

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

Combine like terms: 3a + -3a = 0
5 + 5a = -21 + 0
5 + 5a = -21

Add '-5' to each side of the equation.
5 + -5 + 5a = -21 + -5

Combine like terms: 5 + -5 = 0
0 + 5a = -21 + -5
5a = -21 + -5

Combine like terms: -21 + -5 = -26
5a = -26

Divide each side by '5'.
a = -5.2

Simplifying
a = -5.2

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