(x+14)×7/5=x
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(x+14)×7/5=x(x+14)×7/5=x(x+14)×7/5=xX+14=5/7*X2/7*X=-14X=-49
(x+14)×7/5=x
(x+14)×7/5=x
(x+14)×7/5=x
X+14=5/7*X
2/7*X=-14
X=-49
(x+14)×7/5=x
解九宫格题目(X为未知数)9 X 2 X 7 X 8 X XX X 4 X X 9 X 6 X1 3 X 5 X X X X 24 X X 8 5 X X 1 XX 8 9 4 X 1 6 7 XX 1 X X 3 6 X X 88 X X X X 2 X 3 6X 5 X 6 X X 9 X XX X 7 X 4 X 2 X 1
7:x=14:(2+x)求x
6x+3=7x(x+5)腹股沟
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2(6X方+X)方-11(6X方+X)+5X四次方-10X方+9X三次方-7X方+12X(X+Y)方+2(X+Y)-15A四次方-21A方-100(X方+X)方-14(X方+X)+24X方(X-1)-Y方(X-1)
*-----------------------------------------------*| 6 4 X | 8 X X | X X 5 || X X X | X X X | X 7 8 || X X X | X X X | X X X ||---------------+---------------+--------------- || X X X | X X X | 5 1 X || X X X | X 6 X | X X X || 8 X X | 3 5 X | 2 X X ||
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