Math, asked by dhurub01985, 9 hours ago

please help me in these question = find the whole number n when:​

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Answered by abeta5690
2

Answer:

Hiii Let's start solving

For the first equation

3x + 66 = 99 \\ 3(x + 22) = 3(33) \\ x = 11

Second equation

2n + 5 + n = 72 + 2 \\ 3n = 69(magic \: number) \\ n = 23

Third equation

3n + 6n = 81 - 18 \\ 9n = 63 \\  n = 7

4th equation

76 + 2n = 106 - n \\ 3n = 30 \\ n = 10

5th equation

18 + 3n + 68 = 28 \\ 3n = 28 - 86 \\3n = 58 \\ n = 19 \frac{1}{3}

Hope it helps

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