Answer:
nothing
Step-by-step explanation:
there was no mistake at all he did it all correct he subtract 11 from both sides the divided by 2 correctly.
You have the ratios set up but you need to cross multiply everything:
(5x + 10) x 11 = 121 x 10
55x + 110 = 1210
Subtract 110 from both sides:
55x = 1100
Divide both sides by 55:
X = 1100 / 55
X = 20
Answer:
it's B let me know if I'm wrong
Answer:
7
Step-by-step explanation:
2-3 = -1 and 7 - 1 is 6
x+y=7