Answer:
x=3
Step-by-step explanation:
cross multiply
5(x+3)=3(x+7)
5x+15=3x+21
5x+15-3x=3x+21-3x
2x+15=21
2x+15-15=21-15
2x=6
x=3
-5 - 12 = -17
Starts at -5 degrees, then it drops another 12, so you subtract 12 from -5.
Answer:
Step-by-step explanation:
-4 + 4x = -pq
Add 4 to both sides
4x = -pq + 4
Divide both sides by 4
x = 
Answer:
1. 30
2. 370
3. 470
4. 100
Step-by-step explanation:
for one, add the amount of students that play sports and subtract it from 500. for two, add the number of people that only play soccer and only play basketball. for three, take away the 30 people from the 500 kids that don't play. for four, it says 100 people play both.
