3a+4=121

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Solution for 3a+4=121 equation: 


Simplifying
3a + 4 = 121

Reorder the terms:
4 + 3a = 121

Solving
4 + 3a = 121

Solving for variable 'a'.

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

Add '-4' to each side of the equation.
4 + -4 + 3a = 121 + -4

Combine like terms: 4 + -4 = 0
0 + 3a = 121 + -4
3a = 121 + -4

Combine like terms: 121 + -4 = 117
3a = 117

Divide each side by '3'.
a = 39

Simplifying
a = 39

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