7a=100x-90

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Solution for 7a=100x-90 equation: 


Simplifying
7a = 100x + -90

Reorder the terms:
7a = -90 + 100x

Solving
7a = -90 + 100x

Solving for variable 'a'.

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

Divide each side by '7'.
a = -12.85714286 + 14.28571429x

Simplifying
a = -12.85714286 + 14.28571429x

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