7a+-1b=15

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Solution for 7a+-1b=15 equation: 


Simplifying
7a + -1b = 15

Solving
7a + -1b = 15

Solving for variable 'a'.

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

Add 'b' to each side of the equation.
7a + -1b + b = 15 + b

Combine like terms: -1b + b = 0
7a + 0 = 15 + b
7a = 15 + b

Divide each side by '7'.
a = 2.142857143 + 0.1428571429b

Simplifying
a = 2.142857143 + 0.1428571429b

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