Question

Find the value of 7u+1 given that -5u-1=4

Answer 1

Given:-

$⟹-5u-1=4$

$⟹-5u=4+1$

$⟹-5u=5$

$⟹u=\frac{5}{-5}$

$⟹u=-1$

$Substitute The Value$

$⟹7u+1$

$⟹7×(-1) +1$

$⟹-7+1$

$⟹-6$