3y-20+x+13=3x+9
3y-20+x+13+2y=180
3y-7+x=3x+9
3y=2x+16
y=2/3x+16/3
5y+x=187
5(2/3x+16/3)+x=187
10/3x+80/3+x=187
13/3x=481/3
x=37
Answer:
135 degrees
Step-by-step explanation:
all the angles in a triangle need to add to 180 degrees, so you take
180-(65+70)= 45
Then you just find the supplementary angle
45+x=180
x=135
Answer:
Step-by-step explanation:
x- int
1/3x - 2/3 = 0
1/3x = 2/3
3(1/3x = 2/3)
x = 2
(2, 0)
y- int
y = 1/3(0) - 2/3
y = 0 - 2/3
y = -2/3
(0, -2/3)
Basically something like this