2. 外语
  3. 3(x-4)=5x-20. Solve for x.

3(x-4)=5x-20. Solve for x.

admin2011-03-08  20
问题 3(x-4)=5x-20. Solve for x.
选项
答案 To solve this problem, first do the multiplication on the left side of the equation to get 3x-12=5x-20. Next, put the like terms together. To do this, subtract 3x from both sides, and add 20 to both sides to get 8=2x. Divide both sides by 2 to get x=4.
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