Translate the following into mathematical sentence
1. If 3 is subtracted from a number and their difference is doubled, the result is 2 more than the number
2. A number less than five is equal to sixteen
3. Four times a number is equal to thirty-six
4. A number added to seven equals 102
5. A number added to seven equal to 75
help :((
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x – 3 = 2(x – 3)
x – 5 = 16
4y = 36
x + 7 = 102
n + 7 = 75
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ANSWER:
( I DON'T KNOW THE FIRST ONE {SORRY} )
2. let the no. be x
= x-5 = 16
= x = 16 + 5
= x = 21
3. let the no. be x
= x × 4 = 36
= x = 36 ÷ 4
= x = 9
4. let the no. be x
= x + 7 = 102
= x = 102 - 7
= x = 95
5. let the no. be x
= x + 7 = 75
= x = 75 - 7
= x = 68
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