2x + x = 63
3x = 63
x = 21
2x = 43
Jiri is 21
Mean=(10+14+3x)/(3)
Which mean value ady stated, 18
18=(10+14+3x)/(3)
54= (10+14+3x)
54-10-14=3x
3x=30
x=10
Hope this can help.
1 is b and 2 is j and 3 is d
You subtract the circles because 12-2 equals 10. This means that if you want to subtract 4 from twelve, draw 8 circles.
X+3=8
x+4=9
x+2=7
mark me brainliest if the answer is correct, thank you in advance :)