Answer:
On #7.
Step-by-step explanation:
12(3+y)=5(2y+8)=
12y+36=10y+40=
12y-36=10y+40-36=
12y=10y+4=
12y-10y=4
2y=4
2y/2=4/2
y=2
Answer:
x=40
Step-by-step explanation:
4/25 = X/250
x=(4 . 250) /25
x=40
Answer:
Step-by-step explanation:
First you have to set up the equation:
The statement says three tickets in Japan plus two tickets in Switzerland cost 89.59
You can set up the first equation this way:

Next similarly the second equation will be:

And you solve the sistem of two equations.
Answer:68-35
Step-by-step explanation:
You can do the normal 12 - 3 = 9
Or 12 + (-3) = 9