1+2.8a+7a=20.6

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Solution for 1+2.8a+7a=20.6 equation: 


Simplifying
1 + 2.8a + 7a = 20.6

Combine like terms: 2.8a + 7a = 9.8a
1 + 9.8a = 20.6

Solving
1 + 9.8a = 20.6

Solving for variable 'a'.

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

Add '-1' to each side of the equation.
1 + -1 + 9.8a = 20.6 + -1

Combine like terms: 1 + -1 = 0
0 + 9.8a = 20.6 + -1
9.8a = 20.6 + -1

Combine like terms: 20.6 + -1 = 19.6
9.8a = 19.6

Divide each side by '9.8'.
a = 2

Simplifying
a = 2

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