5(x-9)=15-6(x-1)
5x-45=15-6x+6
5x+6x=21+45
11x=66
x=6
2x-19=1
2x=1+19
2x=20
x=10
5(x-9)=15-6(x-1) 2x-19=1
5(x-9)=15-6(x-1) 2x-19=1
數(shù)學(xué)人氣:828 ℃時(shí)間:2020-05-10 22:56:48
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