Multi- Step Equations
2x-17=35
x= 21
4x= 36
x=9
. -10 = 4x – x
x=-10/3
one solution
(3,1), (2,1), (3,5), (2,4)
Not a function
y=2x +4
Solve for y when x is 3.
y=10
2x-17= 35
x= 21
6x-3= 33
x=6
2a + a = 8
x= 8/3
One solution
What is the equation for the function with these coordinate points?
(0, 2), (1, 5), (2, 8), (3, 11)
y = 3x + 2?
Solve for x when y is 50.
Y=2x+5
x=45/2
18x+17= 35x
x=1
2x = x+12
x=12
. 8x-1 = 5x–1+3x
0=0
all solutions
A swimming pool has 30 gallons of water in it. Water is added to the pool at a rate of 5 gallons per second.
Select the equation that models the relationship between the amount of water (W), in gallons, in the swimming pool after t seconds.
W = 5t + 30
y= 12x +11
Solve for y when x is 0.
y=11
2x+18= 2x
no solution
5x +6= 10x +1
x= 1
4 = 1 - 4x + 3
x=0
One solution
remote control airplane takes off from sea level (ground) and travels at a constant rate of 20 feet every 5 seconds. What is the equation of this line?
y= 4x
y= x
solve for x when y is 300.
x= 300
2(n+15) =4
n+ -13
2(3x+1) = x+13
x=3
4x+12=4x-3
No Solutions
Kayla and Brie are twins, and they each receive $10 a week as an allowance. Kayla has $20 in her savings account and is depositing all of her allowance into her account each week. Brie has $50 in her savings account, and is only depositing $5 into her account each week. Will Kayla ever have as much money as Brie? If so, at what week number?
Kayla will never have as much as Brie.
solve for x.
y= 2x+14
x= y-14/2