Multi-Step Equations
What is a solution?
A value to a variable that makes the equation true.
True or False: Expressions have an equal sign.
False
2x+4=8
What is:
2
-6x+7x
x
x=6
Solving Equations
4x + 3 = 7
What is:
x = 1
This is 3x+6-5x+7 with like terms combined
-2x+13
(x/2)-4=10
What is:
28
x-10+9x-3
10x-13
What is the largest ball in a quidditch match?
The quaffle!
Write the sentence as an equation and solve. Five minus the product of 2 and a number is 7.
5-2x=7
x=-1
This is 2a+b-3c+3b+4a-11c with all terms combined
6a+4b-14c
(x/3)+12=-3
What is:
-45
12x+5+3x-5
15x
What is the name of Spongebob's pet snail?
What is:Gary
Yasmine spent $25 at the movies. One ticket cost $12, she bought two snacks costing s dollars each. Write an equation to show how much each snack cost. Then solve.
2s + 12 = 25
Snacks cost $6.50 each
Solve the equations.
5+2x-2=19
x = 8
3 x + 2 = 14
x=4
2x+x-8+5y+17+x-10y
4x-5y+9
What is the 4th planet from the sun?
Mars
It costs $100 to go to the dentist. If the dentist must fill cavities, she charges an additional $42 per cavity to be filled.
The cost of your visit was $226. How many cavities did you have?
Write an equation for this scenario and then solve it.
100 + 42c = 226
3 cavities
If a square has L side lengths, which expression would be used for finding perimeter (write all that apply)
4L L+L+L+L L·L·L·L L4
4L
L + L + L + L
L·L·L·L
8=a/3+6
a = 6
Agoraphobia is the fear of _____________.
Crowded places.
mme G, m Webb and m Lauzon have 98 students altogether. m Lauzon has double the students that mme Giannotti has. m Webb has half the amount of students mme Giannotti has. How many students does mme Giannotti have?
mme G has 28 students