(x-5.5)x8=64解:x-5.5=8x=13.5
解:(x-5.5)x8=64,x-5.5=8,x=13.5
(x-5.5)X8=64x-5.5=64/8x=8+5.5x=13.5
x-5.5=64÷8x-5.5=8x=8+5.5x=13.5
(x-5.5)x8=64(x-5.5)=8x=13.5