Answer:
y = 5 ; x = 4
Step-by-step explanation:
Given :
5x + 6y = 50 - - - (1)
x - 6y = -26 - - - (2)
From (2)
x = - 26 + 6y
Put - 26 + 6y for x in (1)
5(-26 + 6y) + 6y = 50
-130 + 30y + 6y = 50
-130 + 36y = 50
-130 - 50 = - 36y
-180 = - 36y
y = 180 / 36
y = 5
Put y =5 in x = - 26 + 6y
x = - 26 + 6(5)
x = - 26 + 30
x = 4
True
(-1+1)^2 + (3-6)^2 = 45
6^2 + 3^2
36 + 9
45
yes, it is on there.
1/3y - 7
Add the like terms
-3 + (-4) = -7
and
2/3y + (-1/3y) = 1/3y
Hope this helps :)
7.5
