Solving Linear Equations
Solve for x: 2x=8
x=4
This is the equation for: "x is 2 times y".
x=2*y
This is the number of partridges in the Twelve Days of Christmas.
What is 12?
This is the name of the solving method that requires you to draw lines on a coordinate plane.
What is graphing?
Solve for x:
3x-5=4
What is
x=3
Mr. C lives 3 miles farther from school than Ms. Mellow. Write an equation for the scenario.
Mr. C - use C
Ms. Mellow - use M
Either:
C+3=M
or
C=M-3
This is the number of lights on the Rockefeller Center Tree each year.
a. 10,000
b. 25,000
c. 50,000
What is c. 50,000?
When graphing a system of linear equations, your solution is the ______.
Solve for x:
1/2x-3=4
x=14
Rudolph flies twice as fast and 100 miles farther than Dasher each year. Write the scenario in an equation.
R=2D+100
This is the distance from Lebanon to the North Pole.
a. 3880 miles
b. 4325 miles
c. 5232 miles
What is a. 3880 miles?
Find y:
4y-2x=5
3y+2x=9
What is
y=2
Solve for x:
4-1/2x=1
x=6
Mr. D ate a ghost pepper for this much money.
80 - 60 / 2 - 30
What is $20?
This is the standard size of Christmas tree in the United States
a. 7 feet
b. 213 cm
c. 84 inches
What is 7 feet, 213 cm and 84 inches?
Write the names of the students in the class that are not in your group.
Answers vary.
Solve the literal equation for y (in other words, solve the equation for y in terms of x).
9x-y=45
What is
y=9x-45
This is the number of days we have for vacation.
24 / 2 + 6 / 2 - 3
What is 12 days?
Since Santa travels to 175 million homes on Christmas Eve (in 31 hours of darkness), this is the number of homes he visits every second.
What is 1178 homes?
This is your favorite class in school.
What is math?