Math, asked by prathadalal2020, 6 months ago

if , 5a-2b=25; 3a -2b=15 find a and b​

Answers

Answered by vipashyana1
0

Answer:

a=5, b=0

Step-by-step explanation:

5a-2b=25--eq1

3a-2b=15--eq2

Add eq1 and eq2, we get

2a=10

a=10/2

a=5

Substitute a=5 in eq2

3a-2b=15

3(5)-2b=15

15-2b=15

(-2b)=15-15

(-2b)=0

b=0/(-2)

b=0

Answered by VirajGajarmak
0

Answer:

a = 5 and b = 25

Step-by-step explanation:

5a - 2b = 25...........(1)

3a - 2b = 15...........(2)

Adding (1) and (2),

5a - 2b = 25

+ 3a - 2b = 15

+

-----------------------

8a + 0 = 40

8a = 40

a =40

-----

8

a = 5

Substituting a = 5 in (1),

5a - 2b = 25

5(5) - 2b = 25

25 - 2b = 25

2b = 25 + 25

2b = 50

b = 50

-----

2

b = 25

Therefore, a = 5 and b = 25

hope it helps

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thnk u

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