I would say it equals 4 because if x=-4 than -x should equal 4 i may be wrong though
Answer:
Step-by-step explanation:
im lot 100% sure but i think it is 63
Answer:
x=-1539/445, y=1724/445. (-1539/445, 1724/445).
Step-by-step explanation:
y=9x+35
y=-8/9x+4/5
-------------------
9x+35=-8/9x+4/5
9x-(-8/9x)=4/5-35
9x+8/9x=4/5-175/5
81/9x+8/9x=-171/5
89/9x=-171/5
x=(-171/5)/(89/9)
x=(-171/5)(9/89)
x=-1539/445
y=9(-1539/445)+35
y=1724/445
D
7•4 =28, -5•0 =0... 28+0=28
