13x➕(1x乘34)等于30 x等于幾
13x➕(1x乘34)等于30 x等于幾
數(shù)學(xué)人氣:283 ℃時(shí)間:2020-05-21 23:55:35
優(yōu)質(zhì)解答
X等于2.13X+34=30X 30X-13X=34 17X=34 解得X=2.
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