2a-0.4=1+1.8a

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Solution for 2a-0.4=1+1.8a equation:


Simplifying
2a + -0.4 = 1 + 1.8a

Reorder the terms:
-0.4 + 2a = 1 + 1.8a

Solving
-0.4 + 2a = 1 + 1.8a

Solving for variable 'a'.

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

Add '-1.8a' to each side of the equation.
-0.4 + 2a + -1.8a = 1 + 1.8a + -1.8a

Combine like terms: 2a + -1.8a = 0.2a
-0.4 + 0.2a = 1 + 1.8a + -1.8a

Combine like terms: 1.8a + -1.8a = 0.0
-0.4 + 0.2a = 1 + 0.0
-0.4 + 0.2a = 1

Add '0.4' to each side of the equation.
-0.4 + 0.4 + 0.2a = 1 + 0.4

Combine like terms: -0.4 + 0.4 = 0.0
0.0 + 0.2a = 1 + 0.4
0.2a = 1 + 0.4

Combine like terms: 1 + 0.4 = 1.4
0.2a = 1.4

Divide each side by '0.2'.
a = 7

Simplifying
a = 7

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