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.
30=2p+12
True or false.
You can drive south in central Detroit and enter Canada
True
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
First soda in outer space.
Coca-Cola
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
Number of people in Mr. Peissig's family.
5
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
What is the actual name of this symbol "#"
and no it is not hashtag.
octothorpe
c=-b-11
3c+6=6b
b=-3
c=-8
2(3+5x)=y
y=6+5x
x=0
y=6
6x=7-2y
4x+y=4
x=1/2
y=2
Erica works in a soda-bottling factory. Erica sometimes breaks a bottle before she can cap it. She gets paid 4 cents for each bottle she successfully caps, but her boss deducts 2 cents for each bottle she breaks.
15 bottles have come her way, but she has been breaking some and has only earned 6 cents so far today
4s-2b=6
15=c+b
In the USA how much pizza is consumed in one day?
18 acres (13.5 football fields)