a+2*2=20

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Solution for a+2*2=20 equation: 


Simplifying
a + 2 * 2 = 20

Multiply 2 * 2
a + 4 = 20

Reorder the terms:
4 + a = 20

Solving
4 + a = 20

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 + a = 20 + -4

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

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

Simplifying
a = 16

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