Answer:
y=5x-10
Step-by-step explanation:
graphed it
X = 9
you multiply both sides by 3 because you have to get rid of it and what you do to one side you do to the other then you divide both sides by 2 to isolate the variable. i hope that makes sense.
Answer:
29
Step-by-step explanation:
57+x=86
x=86-57
x=29
Answer:
the answer is c
Step-by-step explanation:
Answer:
15 pencils
Step-by-step explanation:
5/2.5=x/7.5
cross product
2.5*x=5*7.5
2.5x=37.5
x=37.5/2.5
x=15
