<span>-9(4+x)=8x-2
-36 -9x -8x = -2
-17x = -2 +36
-17x = 34
x = 34/ -17
x = -2</span>
Ранжируем ряд:
2,<span>3,</span><span>3,</span><span>3, </span><span>6,</span><span>7,</span><span>7,</span><span>9</span>
Мода = 3
X≠-1,5
2x-4-10x-15=0
-8x=19
x=-19/8=-2 3/8