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3 years ago

PLZ HELP find the value of x in each of the following x/3-2=6 and x/5+1=5

Mathematics

2 answers:

Aleks [24]3 years ago

8 0

The first one is X = 24 & the second one is x= 20

Fed [463]3 years ago

4 0

Answer:

x = 24

x = 20

Steps :

$1) \ \frac{x}{3} - 2 = 6\\\\\$

$\frac{x - 6 }{3} = 6\\\\\ \ x-6 = 6 \times 3\\\\\ \ x - 6 = 18\\\\\ \ x = 24$

$2) \frac{x}{5} + 1 = 5$

$\frac{x+5}{5} = 5\\\\x + 5 = 5 \times 5\\\\x + 5 = 25\\\\x = 20$

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Answer:

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Step-by-step explanation:

Let the digits of the number be T and U;

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So,

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Required

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Substitute 8 - T for U in the second

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$10T + 8 - T - (10*(8-T) + T) = 10 + 10(8 - T) + T$

$10T + 8 - T - (80-10T + T) = 10 + 80 - 10T+ T$

$10T + 8 - T -80+10T - T = 10 + 80 - 10T+ T$

Collect Like Terms

$10T + 10T - T- T + 8 -80 = 10 + 80 - 10T+ T$

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$9T + 18T = 90 + 72$

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$T = 162/27$

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Recall that:

$U = 8 - T$

$U = 8 - 6$

$U = 2$

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Answer:

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