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givi [52]
3 years ago
14

Please help ASAP thank you

Mathematics
2 answers:
aliya0001 [1]3 years ago
8 0

Answer:

A) a = 25

B) b = 14

Step-by-step explanation:

hopefully this helps :)

Darya [45]3 years ago
6 0
<h2><u>Question</u><u>:</u><u>-</u></h2>

Solve the following:

\\  \sf \: a) \:  \:  \frac{a}{5}  + 3 = 8

\\  \sf \: b) \:  \:  \frac{3b}{7}  - 1 = 5

<h2><u>S</u><u>olution:</u><u>-</u></h2>

Solving question a) :

\\  \sf \frac{a}{5 }  + 3 = 8

\\  \sf \mapsto \frac{a + 15}{5}  = 8

\\  \sf \mapsto \: a + 15 = 8 \times 5

\\  \sf \mapsto \: a = 40 - 15

\\  \sf \mapsto \: a = 25

\\  \sf \therefore \: a = 25

Solving question b) :

\\  \sf \frac{3b}{7}  - 1 = 5

\\  \sf \mapsto \:  \frac{3b - 7}{7} = 5

\\  \sf \mapsto3b - 7 = 5 \times 7

\\  \sf \mapsto3b = 35 + 7

\\   \sf \mapsto \: b  =  \frac{42}{3}

\\ \sf \mapsto \: b = 14

\\  \sf \therefore \: b = 14

<h2><u>Answer</u><u>:</u><u>-</u></h2>

a = 25

b = 14

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