Would you solve using elimination, multiplicative elimination, or substitution?
4x+y=10;
2x+y=12
Elimination
100
Solve for y:
x+5y=13;
x+4y=7
y=6
200
Write as an algebraic expression: six times a number minus 4
6x-4
200
Solve for t:
-2+t=7
t=9
200
Solve for c:
(c+8)/2 = c+1
6
200
Would you use elimination, multiplicative elimination, or substitution?
3x+4y-8=0;
4x-5y+7=0
Multiplicative elimination
200
Solve for x:
2x+3y-10=0;
3x+3y=7
x=-3
300
Distribute: -3(x+5)
-3x-15
300
This number tripled and increased by 1 is 10.
3
300
Find the number. A number times 2, then increased by 6 is four times the sum of the number and 2
-1
300
Would you use elimination, multiplicative elimination, or substitution?
y=2x+1;
3x+2y=0
Substitution
300
Solve for x:
2x+y=9;
3x-2y=3
x=3
400
Distribute and combine like terms:
3(2x+y)-2(3x-y)
5y
400
Solve for a:
-3a-2=7
a=-3
400
Solve for y:
3(y+1)-(y+5)=2(2y)
-1
400
Set up a system of equations to solve:
9 coins, a mix of dimes and quarters, have a combined value of $1.95. How many dimes are there?
d+q=9;
5d+25q=195
400
Solve for y:
y=3x+1
y=6x+10
y=-8
500
Rewrite as an algebraic expression, distribute, and combine like terms:
1 less than twice the sum of three z and 5
2(3z+5)-1=6z+10-1=6z+9
500
Solve for n:
n plus one half of n minus 2 is equal to 5.
n=4
500
John starts eating chips at a rate of 7 per minute. Two minutes later, Rochelle joins him, eating a rate of 10 chips per minutes. How many minutes after John starts eating is the entire bag of 184 chips gone?
12 minutes
500
Set up a system of equations to solve:
An apple weighs 1 pound, and an orange weighs 2. A barrel of 25 pieces of fruit, apples and oranges, weighs 32 pounds. How many oranges are in the barrel?
a=# of apples, b=# of oranges:
a+b=25;
a+2b=32
500
Find the number: I am a two digit number, closer to 0 than 100. My digits add up to 10 and have a difference of 2.