x - (x * .25) = 3
(x * 1) - (x * .25) = 3
x * (1 - .25) = 3
x * .75 = 3
x = 3 / .75
x = 4
You don't have to solve for zero. Using automated tools to solve math problems may give you a correct answer (and correct intermediate steps) but they won't always give you the best or clearest of either.
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评论（2）
1 从左侧因式分解 x。 x-(x*0.25)=> (1-0.25)*x
2 计算机必须进行反复试验才能得到结果，它正在寻找使该结果等于零的任何东西。人们本质上可以做得更多。
3
1 Factor x out of the left hand side. x - (x*0.25) => (1-0.25)*x
2 Computers have to do trial and error to get results, it's looking for whatever will make that equal zero. People can do it a lot more intrinsically.
3
你不必解出零。使用自动化工具解决数学问题可能会为您提供正确的答案（以及正确的中间步骤），但它们并不总是为您提供最好或最清晰的答案。
You don't have to solve for zero. Using automated tools to solve math problems may give you a correct answer (and correct intermediate steps) but they won't always give you the best or clearest of either.