4 years ago

Find a number that,if you add 4 to it,and multiply the answer by 3,and then subtract 4,will give you 65.

Mathematics

1 answer:

ikadub [295]4 years ago

6 0

(x + 4)*3 - 4 = 65
3x + 12 - 4 = 65
3x = 65 - 12 + 4
3x = 57 |:3
x = 19 <-- Answer

(19+4)*3-4 = 23*3-4 = 69-4 = 65

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