-2a-b=-7

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


Simplifying
-2a + -1b = -7

Solving
-2a + -1b = -7

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.
-2a + -1b + b = -7 + b

Combine like terms: -1b + b = 0
-2a + 0 = -7 + b
-2a = -7 + b

Divide each side by '-2'.
a = 3.5 + -0.5b

Simplifying
a = 3.5 + -0.5b

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