(6) 1次式の加法 (解答) | 学習日 月 日( ) | ||||
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1 | (3x+1)+(2x+4)=3x+2x+1+4 =5x+5 |
2 | (x+3)+(5x+4)=x+5x+3+4 =6x+7 |
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3 | (5x+3)+(4x+8)=5x+4x+3+8 =9x+11 |
4 | (2x+6)+(1+4x)=2x+4x+6+1 =6x+7 |
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5 | (7x−5)+(3x+8)=7x+3x−5+8 =10x+3 |
6 | (4x+1)+(2x−7)=4x+2x+1−7 =6x−6 |
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7 | (4x−2)+(6x−3)=4x+6x−2−3 =10x−5 |
8 | 8x+(x+2)=8x+x+2 =9x+2 |
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9 | (6x+9)+(3−x)=6x−x+9+3 =5x+12 |
10 | (4x−2)+9x=4x+9x−2 =13x−2 |
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11 | (x+10)+(x−10)=x+x+10−10 =2x |
12 | (1−3x)+(7x+1)=−3x+7x+1+1 =4x+2 |
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13 | (2x−3)+(2x−1)=2x+2x−3−1 =4x−4 |
14 | (6x+2)+(−4x+5)=6x−4x+2+5 =2x+7 |
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15 | (3a−4)+(−3a+5)=3a−3a−4+5=1 |
16 | (−4y+1)+(3y−1)=−4y+3y+1−1 =−y (−1yは不可) |
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