Answer:
y = 1 cm
x = 7 cm
Step-by-step explanation:
x = 3y + 4
perimeter = 2 * ( y + x ) = 16
x + y = 8 by using x = 3y + 4
y + 3y + 4 = 8
4y = 4
y = 1
1 + x = 8
x = 7
y = 1 cm
x = 7 cm
You can simplify the entire equation by dividing it all by 7, resulting in 7(b^2-6b+20).
Here, you can factor as you normally would. Your X values would have to be found using the quadratic formula.
Answer:

Step-by-step explanation:
Hello There!
We can solve for x using trigonometry
More specifically the law of sines
In the image you can see that a side length divided by sin(its opposite angle) is equal to another side length divided by sin(its opposite angle)
so to find x we use this equation

step 1 multiply each side by sin 59
now we have

so we can conclude that x = 14.6
Answer:
add 7 to 9 times k : 7+9k
c cubed minus the product of 5 and q plus 4 : 
twice r plus 7 is equal to 45 minus r : 2r+7=45-r
Product of h and 4 is subtracted from one-fifth of x is 35 :(h*4) - 1/5*x
one third of the difference bewteen 6 and p is added to 8 : (6-p)+8