4a-2.1=9a+5.4

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Solution for 4a-2.1=9a+5.4 equation:


Simplifying
4a + -2.1 = 9a + 5.4

Reorder the terms:
-2.1 + 4a = 9a + 5.4

Reorder the terms:
-2.1 + 4a = 5.4 + 9a

Solving
-2.1 + 4a = 5.4 + 9a

Solving for variable 'a'.

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

Add '-9a' to each side of the equation.
-2.1 + 4a + -9a = 5.4 + 9a + -9a

Combine like terms: 4a + -9a = -5a
-2.1 + -5a = 5.4 + 9a + -9a

Combine like terms: 9a + -9a = 0
-2.1 + -5a = 5.4 + 0
-2.1 + -5a = 5.4

Add '2.1' to each side of the equation.
-2.1 + 2.1 + -5a = 5.4 + 2.1

Combine like terms: -2.1 + 2.1 = 0.0
0.0 + -5a = 5.4 + 2.1
-5a = 5.4 + 2.1

Combine like terms: 5.4 + 2.1 = 7.5
-5a = 7.5

Divide each side by '-5'.
a = -1.5

Simplifying
a = -1.5

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