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Byju's Answer
Standard VII
Mathematics
Finding the Value of an Expression
3 a+5 b=26 ; ...
Question
3a + 5b = 26 ; a + 5b = 22
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Solution
Here is ur ans___________:)
3a+5b=26
a+5b=22
_________
on subtraction signs will change
3a+5b=26
-a-5b=-22
__________
2a=4
a=4/2
a=2
now substituting a=2 in equation 1
3×2+5b=26
6+5b=26
5b=26-6=20
b=20/5
b=4
so a=2 and b=4
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