Y=30
(-5, 2)
80 = 3y + 2y + 4 + 1 80 = 5y + 5 80 - 5 = 5y + 5 - 5 75 = 5y 75 / 5 = 5y / 5 15 = y
5y + x = 0 subtract 5y from each side, then x = -5y
5(6 + y)
6y+5 = 11y+30 -25 = 5y -5 = y
Y=30
The given expressions are: 5x + 5y = 30 3x - 5y = -30 Combine both equations to get: 5x + 3x + 5y - 5y = -30 + 30 8x = 0 Then: 8x/8 = 0/8 x = 0 Substitute that value for either of the expressions to get: 5(0) + 5y = 30 5y = 30 y = 30/5 y = 6 Therefore, the coordinates are x = 0 and y = 6.
(-5, 2)
80 = 3y + 2y + 4 + 1 80 = 5y + 5 80 - 5 = 5y + 5 - 5 75 = 5y 75 / 5 = 5y / 5 15 = y
x-int. is -5 y-int. is 6
-3/5
5
3y+2y+4+1=80 5y+5=80 5y=80-5 5y=75 y=15
8 + 5y = 18 Therefore, 5y = 10 y = 10/5 y = 2
5y + x = 0 subtract 5y from each side, then x = -5y
5(6 + y)