(x+16):(5x+16)=1:4 怎样解
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![(x+16):(5x+16)=1:4 怎样解](/uploads/image/z/1681990-70-0.jpg?t=%28x%2B16%29%3A%285x%2B16%29%3D1%3A4+%E6%80%8E%E6%A0%B7%E8%A7%A3)
(x+16):(5x+16)=1:4 怎样解
(x+16):(5x+16)=1:4 怎样解
(x+16):(5x+16)=1:4 怎样解
(x+16):(5x+16)=1:4
4(x+16)=5x+16 外项积等于内项的积
4x+64=5x+16
x=48
5x+16=4x(X+16),展开:5X+16=4X+64,移项:X=48
(5X+16) = 4(X+16)
5X -4X =64 -16
X =48
4(x+16)=(5x+16)4x16-16=5x-4x x=48