4=3a+20

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Solution for 4=3a+20 equation:


Simplifying
4 = 3a + 20

Reorder the terms:
4 = 20 + 3a

Solving
4 = 20 + 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.
4 + -3a = 20 + 3a + -3a

Combine like terms: 3a + -3a = 0
4 + -3a = 20 + 0
4 + -3a = 20

Add '-4' to each side of the equation.
4 + -4 + -3a = 20 + -4

Combine like terms: 4 + -4 = 0
0 + -3a = 20 + -4
-3a = 20 + -4

Combine like terms: 20 + -4 = 16
-3a = 16

Divide each side by '-3'.
a = -5.333333333

Simplifying
a = -5.333333333

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