2a+4=40

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Solution for 2a+4=40 equation: 


Simplifying
2a + 4 = 40

Reorder the terms:
4 + 2a = 40

Solving
4 + 2a = 40

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 + 2a = 40 + -4

Combine like terms: 4 + -4 = 0
0 + 2a = 40 + -4
2a = 40 + -4

Combine like terms: 40 + -4 = 36
2a = 36

Divide each side by '2'.
a = 18

Simplifying
a = 18

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