Equations with Rational Coefficients
3.15=0.45n
what is n=7
2x+3=7
What is x=2
Fifteen equals three more than six times a number
What is 15=6n+3
8+4d=5d
What is d=8
8(3a +6)=9(2a-4)
what is a= -14
6= 1/12v
What is v=72
10-28/3p=52
What is p=-63
Four less than five times a number is equal to eleven.
what is 5n-4=11
7a+10=2a
What is a=-2
8(c-9)=6(2c-12)-4c
What is c=identity or all real numbers
-24/5=-31/2n
What is n= 4/5
-1/2x-7=-11
What is x=8
Fifteen more than half a number is nine
What is
1/2n+15=9
3-2/9b=1/3b-7
What is b=18
-10y+18=-3(5y-7)+5y
y=null set or no solution
-413.4= -15.9n
What is n=26
(a-4)/5=12
What is a=64
The current temperature outside is 54oF. It is expected to rise 2.20F each hour. In how many hours will the temperature be 84oF?
What is 12 Hours
9g-14=2g
what is g=2
1/3h-4(2/3h-3)=2/3h-6
What is h=6
Kaitlyn correctly answered 80% of the questions on a Math quiz. If she answered 16 questions correctly, how many questions were there on the math quiz?
What is 20 questions
Mrs. Haddad took her niece and nephews to the aquarium. Each person pays $7.50 to get in. They spend a total of $40 on the shark exhibit. The total cost is $70. Solve 7.5x+40=70 to find how many people went to the aquarium.
What is x= 4 people
Nick has saved $725 for a new guitar and lessons. His guitar cost $475, and guitar lessons are $25 an hour. Determine how many hours of lessons Nick can afford.
What is 10 hours
Nine fewer than half a number is five more than four times the number. Define the variable, write an equation, and solve to find the number.
What is n; 0.5n-9=4n+5; n=-4
Ms. Sabater's class is holding a canned food drive for charity. Alexis collected 10 more cans than Ethan. Tristan collected twice as many cans as Alexis. If they collected 130 altogether, how many cans did Alexis collect?
What is Alexis collected 35 cans