Slope intercept form is y=mx+b where m=slope and b=yintercept so
3x-7y=11
add 7y to both sideds
3x=11+7y
subtract 11 from both sides
3x-11=7y
divide both sides by 7
3/7x-11/7=y
y=3/7x-11/7
slope is 3/7
Answer: 35 divided by the difference of 12 and 5
This is known as a variant!