-9h-6+12h+40=22 -9h+12h=22-40+6 3h=-12 h=-4
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you can not solve this equation
27
To solve an equation with three unknowns, x, y and z, you require 3 independent equations.
You cannot solve one linear equation in two unknown variables.
16x+9 without the rest of the equation, what this equals, I can't solve