Answer:
7
Step-by-step explanation:
We look at where the two circles for Russian and Chinese overlap
The numbers in that area are 2 and 5
2+5 = 7
Your answer is correct.
5 speak Chinese and Russian, but 2 speak all languages
So add 5+2 to get 7.
So your answer is correct.
2x-4+4=6x+4-4x
2x=2x+4
c there is no solution
12.9 + 10.2x = 35.1
10.2x = 35.1 - 12.9
10.2x = 22.2
x = 22.2/10.2
x= 222/102 = 111/51
C is the sorrect because those both lines are equal