Solving Two step Equations
28+4a=68
12
7x+20+x
27x
7y+2+3y=8
y=.6
8+2x=-4-7x
x=-1/3
5x-2=-x-7
one solution
156+10b=276
b=12
9.5c-5(c+6)
4.5c+30
21x+2+11x=5
(Round up)
x=0.1
7+10d=-9+5.6d
d=-1.0
1.56=56
2.X=210
3.26=56
1=infinite
2=one
3=none
-12+156c=300
c=2
7n-2r+10n+21r
17n+23r
3.2n+11+5.6n=32
(Round up)
n=2.4
22+7h=-21-5h
h=-12
7x-5=2(x-1.2)
x= 0.52
-56-166=126
(Round up)
b=11.4
5z-7.2y-1.2z+y
8.2y-6.2z
365.9x+56+535.2x=10
x=.01
9e+4=-5e+14+13e
(Round up)
e=.82
3.1x-10=3.1(x-2)
-10=-2
(none)
Mason just got done jumping at Skyzone Trampoline Park. The total cost of his session was $43.25. He had to pay a $7 entrance fee and $1.25 for every minute he was on the trampoline. How many minutes did Mason jump?
x=29 minutes
For the Winter, Dean buys 6 gloves and 2 pairs of snow pants. His friend buys 3 jackets and 2 pairs of gloves. Define and use variables to represent the total cost.
(One variable must stand for both jackets and snow pants.)
9g+4x
Your class goes to a water park. Admission is 8 dollars for each student and 12 dollars for each chaperone. The total cost is 350 dollars. There are 10 girls in your class and 8 chaperones on the trip. How many boys are in your class?
(Round up)
x= About 17 boys
A gym offers a membership for 55$. Members may take classes for 20$ each. nonmembers must pay 25$ for these classes, how many classes could a nonmember take and pay the same total amount as a member?
(Round up)
X=1.2
you want to take five lessons of basketball. You can pay a membership fee of 45$ plus fee per lesson. you can also decide to not pay a membership fee per lesson is 65$ more. is there any lesson fee for witch these two lessons cost the same
45=325
(no solution)