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1年数学 2学期期末

Authored by 髙松風生 髙松風生

Mathematics

7th Grade

Used 10+ times

1年数学 2学期期末
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10 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

x+6=8x+6=8  を解け

x=8+6x=8+6  

x=14x=14  

x=8−6x=8-6  

x=2x=2  

x=6−8x=6-8  

x=−2x=-2  

2.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

x−2=4x-2=4  を解け

x=4−2x=4-2  

x=2x=2  

x=4+2x=4+2  

x=6x=6  

x=−4−2x=-4-2  

x=−6x=-6  

3.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

5x=255x=25  を解け

x=25−5x=25-5  

x=20x=20  

x=25÷5x=25\div5  

x=5x=5  

x=25×5x=25\times5  

x=125x=125  

4.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

x6=−4\frac{x}{6}=-4  を解け

x=−4−6x=-4-6  

x=−10x=-10  

x=−4×6x=-4\times6  

x=−24x=-24  

x=−4÷6x=-4\div6  

x=−23x=-\frac{2}{3}  

5.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

4x+3=2x+74x+3=2x+7  を解け

4x+2x=3+74x+2x=3+7  

6x=106x=10  

x=53x=\frac{5}{3}  

4x−2x=−3+74x-2x=-3+7  

2x=42x=4  

x=2x=2  

7x=97x=9  

x=97x=\frac{9}{7}  

6.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

3(2x+1)=−2x−53\left(2x+1\right)=-2x-5  を解け

2x+1=−2x−5−32x+1=-2x-5-3  

2x+2x=−1−5−32x+2x=-1-5-3  

4x=−94x=-9  

x=−94x=-\frac{9}{4}  

6x+3=−2x−56x+3=-2x-5  

6x+2x=−3−56x+2x=-3-5  

8x=−88x=-8  

x=−1x=-1  

2x+1=−6x−152x+1=-6x-15  

2x+6x=−1−152x+6x=-1-15  

8x=−168x=-16  

x=−2x=-2  

7.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

x+22=2x+43\frac{x+2}{2}=\frac{2x+4}{3}  を解け

x+22×2=2x+43×3\frac{x+2}{2}\times2=\frac{2x+4}{3}\times3  

x+2=2x+4x+2=2x+4  

x−2x=−2+4x-2x=-2+4  

−x=2-x=2  

x=−2x=-2  

x+22×6=2x+43×6\frac{x+2}{2}\times6=\frac{2x+4}{3}\times6  

  3x+6=4x+83x+6=4x+8  

3x−4x=−6+83x-4x=-6+8  

−x=2-x=2   

x=−2x=-2  

2(x+2)=3(2x+4)2\left(x+2\right)=3\left(2x+4\right)  

2x+4=6x+122x+4=6x+12  

2x−6x=−4+122x-6x=-4+12  

−4x=8-4x=8  

x=−2x=-2  

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