Mathematics
Senior High
なぜ、方程式の時には、場合わけが必要になるのですか
*(2)x-2<4
(5) 2x+3|≤7
(8) 1-3x-5<1
(3) x-1≥6
*(6) 13x-41>8
(9) 3-x|≥9
✓ 105 次の方程式, 不等式を解け。
*(1) | x+4|=3x
*(2)x-3|-
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