Mathematics
Junior High
9〜がわかりません。誰か教えて下さい!
3
1 1.1
34
2
6 -3?
A
③35+(-7)-2x(-2)
12 (-2x-5)+(2x+8)
3
1+ 2x+6
15) (-12x)+2
2a-1
3a-4
-6(4+x)
18)
3
2
2) 2(x+1)-(x-1)=D4
= 0.1(6+x)
② ォー
24)
x-3=D1
2
33
6
Answers
(9)35÷(-7)-2×(-2)=-5+1=-4
(12)=3
(15)=-8
(18)=6分の4a-2 - 6分の9a-12
=6分の5a-14
(21)2x+2-x+1=4
x+3=4
x=4-3
x=1
(24)×2して
x-6=2
x=2+6
x=8
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【訂正】(9)=-5+4=-1
(15)=-8x