7a+-4b=x

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Solution for 7a+-4b=x equation: 


Simplifying
7a + -4b = x

Solving
7a + -4b = x

Solving for variable 'a'.

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

Add '4b' to each side of the equation.
7a + -4b + 4b = 4b + x

Combine like terms: -4b + 4b = 0
7a + 0 = 4b + x
7a = 4b + x

Divide each side by '7'.
a = 0.5714285714b + 0.1428571429x

Simplifying
a = 0.5714285714b + 0.1428571429x

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