84=3.14*6+2*6+2a

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Solution for 84=3.14*6+2*6+2a equation:


Simplifying
84 = 3.14 * 6 + 2 * 6 + 2a

Multiply 3.14 * 6
84 = 18.84 + 2 * 6 + 2a

Multiply 2 * 6
84 = 18.84 + 12 + 2a

Combine like terms: 18.84 + 12 = 30.84
84 = 30.84 + 2a

Solving
84 = 30.84 + 2a

Solving for variable 'a'.

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

Add '-2a' to each side of the equation.
84 + -2a = 30.84 + 2a + -2a

Combine like terms: 2a + -2a = 0
84 + -2a = 30.84 + 0
84 + -2a = 30.84

Add '-84' to each side of the equation.
84 + -84 + -2a = 30.84 + -84

Combine like terms: 84 + -84 = 0
0 + -2a = 30.84 + -84
-2a = 30.84 + -84

Combine like terms: 30.84 + -84 = -53.16
-2a = -53.16

Divide each side by '-2'.
a = 26.58

Simplifying
a = 26.58

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