asherkbohannan
01.01.2022 •
Mathematics
i am thinking of a number. when i subtract 7 from the number and then multiply the result by 4, the answer is the same as subtracting the number from 40 and then multiplying the result by 8. Let the number be x. Write down an equation in x and solve it.
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Ответ:
The value of x is 73
Step-by-step explanation:
Let the number be x
Now, when we subtract 7 from the number and then multiply the result by 4 i.e.,
(x - 7) × 4 = 4x - 28
Again, when we subtract 40 from the number and then multiply the result by 8 i.e.,
(x - 40) × 8 = 8x - 320
Here, Both are same
4x - 28 = 8x - 320
Now, Add 320 and subtract 4x from both side we get,
4x - 4x - 28 + 320 = 8x - 4x - 320 + 320
292 = 4x
4x = 292
Now, Divide both side by 4
4x/4 = 292/4
x = 73
Thus, The value of x is 73
For Verification:4x - 28 = 8x - 320
4(73) - 28 = 8(73) - 320
262 = 262
Hence, L.H.S = R.H.S
-TheUnknownScientist 72
Ответ:
the first set
Step-by-step explanation:
your welcome