Substitution
y=-x-7
5y+3x=-13
x=-11
y=4
y=-2x+5
y=x-1
x=2
y=1
2x+3y=15
x-3y=3
x=6
y=1
Zola earned $30 by working two hours and receiving a $12 bonus. (1 Equation)
30=2p+12
First soda in outer space.
Coca-Cola
y=3x
2y-5x=4
x=4
y=12
x=-5y+2
x=3y-2
x=-.5
y=.5
3x+y=1
4x+y=2
x=1
y=-2
Eddie, who earns $5 per hour, worked 2 hours longer than Zach, who earns $12 per hour. Together they earned $30
5E+12Z=30
E=2+z
True or false.
You can drive south in central Detroit and enter Canada
True
x-4=y
-5y+8x=29
x=3
y=-1
y=-.5x+7
y=x-8
x=10
y=2
-6x+2y=76
3x-y=-38
All solutions
Elsie took all of her cans and bottles from home to the recycling plant. The number of cans was one more than four times the number of bottles. She earned 12¢ for each bottle and 10¢ for each can, and ended up earning $2.18 in all.
c=1+4b
12b+10c=218
How many colors will you find in a regular bag of M&Ms?
6
2x+2y=18
x=3-y
No solution
Bonus points(lines are parallel)
y=.5x+4
y=-2x+9
x=2
y=5
5x+3y=-6
2x-9y=18
x=0
y=-2
The Math Club sold roses and tulips this year for Valentine's Day. The number of roses sold was 8 more than 4 times the number of tulips sold. Tulips were sold for $2 each and roses for $5 each. The club made $414.00. How many roses were sold?
r=4t+8
2t+5r=414
When was Wi-Fi first introduced to the public?
1997
c=-b-11
3c+6=6b
b=-3
c=-8
2(3+5x)=y
y=6+5x
x=0
y=6
6x+2y=7
4x+y=4
x=1/2
y=2
The senior classes at High School A and High School B planned separate trips to the state fair. The senior class at High School A rented and filled 2 vans and 10 buses with 484 students. High School B rented and filled 9 vans and 5 buses with 378 students. Every van had the same number of students in it as did the buses. How many students can a van carry? How many students can a bus carry?
2v+10b=484
9v+5b=378
When was the cellphone invented?
1973