幫我解方程,THX~~~(寫埋式) @ 百科全書

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幫我解方程,THX~~~(寫埋式)

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幫我解方程,THX~~~(寫埋式) 1.5=9+6-2x 2.4+3n-12=25 3.11-7y+3=-7 4.5h+1-4h=10 6.6m-11m+2=22 7.19-7b-5b=-53

最佳解答:

1.5=9+6-2x 5-9-6=-2x -10=-2x x=5// 2.4+3n-12=25 3n=25+12-4 3n=33 n=11// 3.11-7y+3=-7 -7y=-7-3-11 -7y=-21 y=3// 4.5h+1-4h=10 h=10-1 h=9// 6.6m-11m+2=22 -5m=22-2 -5m=20 m=-4// 7.19-7b-5b=-53 -12b=-53-19 -12b=-72 b=6//

其他解答:

1) 5=9+6-2x 2x=9+6-5 2x=10 x=5 2) 4+3n-12=25 3n=25-4+12 3n=33 n=11 3) 11-7y+3=(-7) 11+3+7=7y 21=7y y=3 4) 5h+1-4h=10 h+1=10 h=10-1 h=9 6) 6m-11m+2=22 -5m+2=22 -5m=20 m=-4 7) 19-7b-5b=-53 19+53=7b+5b 72=12b b=6|||||1. 5=9+6-2x 5=15-2x 2x=15-5 2x=10 x=5 2. 4+3n-12=25 3n=25-4+12 3n=33 n=11 3. 11-7y+3=-7 11+3+7=7y 21=7y 3=y y=3 4. 5h+1-4h=10 5n-4n=10-1 n=9 6. 6m-11m+2=22 6m-11m=22-2 -5m=20 -m=4 m=-4 7. 19-7b-5b=-53 19+53=7b+5b 72=12b 6=b b=6 Too easy!|||||(1) 5=9+6-2x 2x=9+6-5 2x=10 x=5 (2) 4+3n-12=25 3n=25-4+12 3n=33 n=11 (3) 11-7y+3=-7 -7y=-7-11-3 -7y=-21 y=3 (4) 5h+1-4h=10 5h-4h=10-1 h=9 (6) 6m-11m+2=22 -5m=22-2 -5m=20 m=-4 (7) 19-7b-5b=-53 -12b=-53-19 -12b=-72 b=6|||||1. 5=9+6-2X 5-9-6=-2X -10=-2X X=5 2. 4+3N-12=25 3N=25+12-4 N=33/3 N=11 3. 11-7Y+3=-7 11+3+7=7Y Y=3 4. 5H+1-4H=10 H=10-1 h=9 6(冇第5題?) 6m-11m+2=22 2-22=5m -20=5m m=4- 7. 19-7b-5b=-53 -12b=-53-19 -12b= -72 b=6