Use the substitution method to solve the system of equation. choose the correct ordered pair. x+y=12 -x=-y-10

x=11, y =1

Step-by-step explanation:

x+y=12

-x=-y-10

multiply by -1

-1*(-x)=-1(-y-10)

x = y+10

substitute this into the first equation.  everytime you see x  put in y+10

x+y=12

(y+10) + y =12

combine like terms

2y+10 =12

subtract 10 from each side

2y+10-10=12-10

2y = 2

divide by 2

2y/2 =2/2

y =1

now we need to find x

x = y+10

x = 1+10

x =11

this linear equation would have just one solution.

step-by-step explanation:

the reason why this would have one solution is that it is an expression with just one variable. since that variable is not raised to a power, it will always have just one solution.

many reason,

step-by-step explanation: