। (2) निम्न युगपत समीकरणों को हल कीजिए ।
(1) 3a + 5b = 26; a + 5b = 22
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Answer:
a = 2 and b= 4
Step-by-step explanation:
3a + 5b = 26 ....(1)
a + 5b = 22 .....(2)
from equation (2)
a = 22 - 5b ...... (3)
putting equation (3) in equation (1)
3a + 5b = 26
3( 22 - 5b) + 5b = 26
66 - 15b + 5b = 26
-10b = 26 - 66
-10b = - 40
b = 4
from equation (3)
a = 22 - 5b
a = 22 - 20
a = 2
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