10a-8=-42

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Solution for 10a-8=-42 equation: 


Simplifying
10a + -8 = -42

Reorder the terms:
-8 + 10a = -42

Solving
-8 + 10a = -42

Solving for variable 'a'.

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

Add '8' to each side of the equation.
-8 + 8 + 10a = -42 + 8

Combine like terms: -8 + 8 = 0
0 + 10a = -42 + 8
10a = -42 + 8

Combine like terms: -42 + 8 = -34
10a = -34

Divide each side by '10'.
a = -3.4

Simplifying
a = -3.4

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