3a+8=5a-20

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Solution for 3a+8=5a-20 equation:


Simplifying
3a + 8 = 5a + -20

Reorder the terms:
8 + 3a = 5a + -20

Reorder the terms:
8 + 3a = -20 + 5a

Solving
8 + 3a = -20 + 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.
8 + 3a + -5a = -20 + 5a + -5a

Combine like terms: 3a + -5a = -2a
8 + -2a = -20 + 5a + -5a

Combine like terms: 5a + -5a = 0
8 + -2a = -20 + 0
8 + -2a = -20

Add '-8' to each side of the equation.
8 + -8 + -2a = -20 + -8

Combine like terms: 8 + -8 = 0
0 + -2a = -20 + -8
-2a = -20 + -8

Combine like terms: -20 + -8 = -28
-2a = -28

Divide each side by '-2'.
a = 14

Simplifying
a = 14

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