please solve this question ....
from lesson expansion
solve with steps
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please solve this question ....
from lesson expansion
solve with steps
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a -b=7....eq2
now,eq1+2
2a=8
a=4
now,b
a+b=1
4+b=1
b=-3
now
1.4×4+(-3)(-3)
16+9
25
2.4×(-3)
-12
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