Multiply the equation by negetive 1. So, -2x+y=1 becomes 2x-y=-1.
It depends on the domain of y. If that is restricted to non-negative values, then the answer is yes. But if y is allowed to be negative, then the answer is no because then there are two values of y for each non-zero value of x.
No solution. A negative number is not allowed.
yes -a=-b means you multiplied each side by -1 which is allowed
No running allowed! Never jog alone at night.
When a law is allowed to stand because it is reasonably related to a legitimate government interest.
Change superscripts
It depends on the domain of y. If that is restricted to non-negative values, then the answer is yes. But if y is allowed to be negative, then the answer is no because then there are two values of y for each non-zero value of x.
Yes.
Identity.
Coefficients of molecules are adjusted.
You're allowed to do that, yes. Whether or not it "solves" any particular equation depends on the equation itself.
The reasonableness standard is the standard by which a law is allowed to stand because it is reasonably related to a legitimate government interest.
I'm not allowed to tell u
No solution. A negative number is not allowed.
yes -a=-b means you multiplied each side by -1 which is allowed
well on the negative side you can NOT get divorced or eat vegtables but fruit is allowed since 1990.
only if u don't know maths