Answer:
B (1)
Step-by-step explanation:
Slope-intercept form : y = mx + b
3) y + 4 = x
So, you need to move 4 to the other side, so that y is by itself.
Subtract 4 from both sides.
y = x - 4
~Hope I helped!~
You can find a unit rate by dividing the first number by another number to get something per something.
For example, if a question asked: What is the unit rare for 100 feet for 2 seconds, it would be 100/2, so it is 50 feet per second.
5x+2=47 subtract 2 from both sides
5x=45 divide both sides by 5
x=9