方程式L1-1-2(8問)
方程式を解け
x+7=2
解答○ ×x-9=-7
解答○ ×x-8=-15
解答○ ×x+10=15
解答○ ×x-12=-14
解答○ ×x-6=3
解答○ ×x+9=3
解答○ ×x+7=15
解答○ ×問題と解答
x+7=2-5 x-9=-72 x-8=-15-7 x+10=155 x-12=-14-2 x-6=39 x+9=3-6 x+7=158
x+7=2-5 x-9=-72 x-8=-15-7 x+10=155 x-12=-14-2 x-6=39 x+9=3-6 x+7=158
