Question

If x - 12y = -210 and x - 6y = 90, then x =

Answer 1

X=-198(substitute the value of x into the equation)
x-6y=90

-198-6y=90(solve the equation)

y=-48(a possible solution is)

(x,y)=(198,-48). (check yhe solution)

-198-12= 210(simplify)
-198-6(-48)=90

-210=-210( the ordered pair is a solution)
90=90

(x,y)=(198,-48)
is the answer