4=1.8+a+8

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Solution for 4=1.8+a+8 equation:


Simplifying
4 = 1.8 + a + 8

Reorder the terms:
4 = 1.8 + 8 + a

Combine like terms: 1.8 + 8 = 9.8
4 = 9.8 + a

Solving
4 = 9.8 + a

Solving for variable 'a'.

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

Add '-1a' to each side of the equation.
4 + -1a = 9.8 + a + -1a

Combine like terms: a + -1a = 0
4 + -1a = 9.8 + 0
4 + -1a = 9.8

Add '-4' to each side of the equation.
4 + -4 + -1a = 9.8 + -4

Combine like terms: 4 + -4 = 0
0 + -1a = 9.8 + -4
-1a = 9.8 + -4

Combine like terms: 9.8 + -4 = 5.8
-1a = 5.8

Divide each side by '-1'.
a = -5.8

Simplifying
a = -5.8

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