8a+1.4=9a-6.4

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Solution for 8a+1.4=9a-6.4 equation:


Simplifying
8a + 1.4 = 9a + -6.4

Reorder the terms:
1.4 + 8a = 9a + -6.4

Reorder the terms:
1.4 + 8a = -6.4 + 9a

Solving
1.4 + 8a = -6.4 + 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.
1.4 + 8a + -9a = -6.4 + 9a + -9a

Combine like terms: 8a + -9a = -1a
1.4 + -1a = -6.4 + 9a + -9a

Combine like terms: 9a + -9a = 0
1.4 + -1a = -6.4 + 0
1.4 + -1a = -6.4

Add '-1.4' to each side of the equation.
1.4 + -1.4 + -1a = -6.4 + -1.4

Combine like terms: 1.4 + -1.4 = 0.0
0.0 + -1a = -6.4 + -1.4
-1a = -6.4 + -1.4

Combine like terms: -6.4 + -1.4 = -7.8
-1a = -7.8

Divide each side by '-1'.
a = 7.8

Simplifying
a = 7.8

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