2.85a-7=12.85-2

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Solution for 2.85a-7=12.85-2 equation:


Simplifying
2.85a + -7 = 12.85 + -2

Reorder the terms:
-7 + 2.85a = 12.85 + -2

Combine like terms: 12.85 + -2 = 10.85
-7 + 2.85a = 10.85

Solving
-7 + 2.85a = 10.85

Solving for variable 'a'.

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

Add '7' to each side of the equation.
-7 + 7 + 2.85a = 10.85 + 7

Combine like terms: -7 + 7 = 0
0 + 2.85a = 10.85 + 7
2.85a = 10.85 + 7

Combine like terms: 10.85 + 7 = 17.85
2.85a = 17.85

Divide each side by '2.85'.
a = 6.263157895

Simplifying
a = 6.263157895

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