7a-2a+b=

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Solution for 7a-2a+b= equation: 


Simplifying
7a + -2a + b = 0

Combine like terms: 7a + -2a = 5a
5a + b = 0

Solving
5a + b = 0

Solving for variable 'a'.

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

Add '-1b' to each side of the equation.
5a + b + -1b = 0 + -1b

Combine like terms: b + -1b = 0
5a + 0 = 0 + -1b
5a = 0 + -1b
Remove the zero:
5a = -1b

Divide each side by '5'.
a = -0.2b

Simplifying
a = -0.2b

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