Answer:
Yea.. Its C
Step-by-step explanation:
90 + 20x + 10x = 180
30x = 90
x = 3
let y = x^2
4y^2 -21y + 20 = 0
solve for y
then substitute back in to get x
D. 20/3 I think it’s the answe
First, you gotta simplify. There’s really nothing to simplify so just take it out of the parenthesis.
2x-8=2x-4
Now turn the -8 into a +8. Add it on each side.
2x=2x+8
Now turn the 2x on the right into a negative. Do the same thing you did with the 8.
Now it’s:
0 = 8
That means there’s no solution.
Hope this helped :)
