What is the solution to the system of equations below?

y = - 1/3 x + 9 and y = 2/3 x - 12

x=21, y=2 OR (21, 2)

Step-by-step explanation:

solve using substitution:

-1/3x + 9 = 2/3x -12

9 = x -12 (add 1/3 to both sides)

x =21 (add 12 to both sides)

substitute x into first equation to find y ( y= -1/3x +9)

y = -1/3(21) + 9

y = -7 +9

y= 2

Answer : x = 21, y = 2  OR  (21 , 2)

the entire expression should be subtracted from 30. to subtract the quantity, distribute the negative sign, which changes the signs on the terms. so, the –2 changes to positive and gets added to 30 instead of subtracted from it.

hope this ! ^w^

the answer is 844

step-by-step explanation:

it is 844 because if you add 836.50 + 7.5 you will get 844