So you know that:
2x+y=14+y
and
5x-y=x+13y
Here you have two equations with two unknown variables:
If you isolate x from the second equations you get:
x=(7/2)y
Insert that in the first equations and solve for y:
2*(7/2)y+y=14+y
y=2
Insert that value for y in one of the two equations (i chose the first):
2x+2=14+2
x=7
Therefore x=7
Hope that helped.
Actually you could start with isolating x, and then insert that in one of the two equations.
Answer:
10
Step-by-step explanation:
there
I would say 504 basing it off of converting 2/3 into 4/6 and used sets of 84 to each be 1/6
Answer:
width times length
Step-by-step explanation:
Answer:
Step-by-step explanation:
12 = 60% of x = 0.6x
x= 12/0.6= 20
Paper had 20 shapes. He cut out 12 shapes; 8 shapes remain
