Use the substitution method to solve the system of equation. choose the correct ordered pair.

x+y=12

-x=-y-10

(11,1)

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