The solution too: 4(3x−5)=−80?

One line passes through (-7,-4) and (5,4) . another line passes through the point (-4,6) and (6,-9)

How many 3-digit numbers can you write using only digits 1 and 7? (of course, digits can repeat.) how many 3-digit numbers can you write using only digits 1 and 7? (of course, digits can repeat.)

Which expression is equivalent to -12(3x-3/4)