Answer:
51
Step-by-step explanation:
I mean it should add up to 180 so
180 = 63+66+x
x=51
So the equation was really 6x+8=44, not 6x+8y=44 as I am used to
solve for x first
6x+8=44
minus 8 both sides
6x=36
divide both sides by 6
x=6
sub
y=6x+4
y=6(6)+4
y=36+4
y=40
D
This would basically be :
5 1/3 - 3 9/18
Then, make both fractions share a common denominator
5 6/18 - 3 9/18
Then, change the first number to make it compatible to subtract
4 24/18 - 3 9/18 = 1 15/18
Simplify
1 15/18 = 1 5/6
The expression to be simplified is: (9x^2 - 25) / (3x + 5)
We first factor the numerator: 9x^2 - 25 is a difference of two squares, (3x)^2 - (5)^2, so this can be factored into (3x + 5)(3x - 5).
Then the expression becomes (3x + 5)(3x - 5) / (3x+5), and the 3x + 5 term cancels out, leaving just 3x - 5 as the final answer.