Question

Solve and verify 5n - (3n-1)=n-4​

Answer 1

5n-(3n-1)=n-4

5n-3n+1=n-4

2n+1=n-4

2n-n=-4-1

n=-5

Verification:

5×-5-(3×-5-1)=-5-4

-25-(-15-1)=-9

-25-(-16)=-9

-25+16=-9

-9=-9

hope it helps..

Answer 2

Answer:

n = -5

Solution:

We have ;

=> 5n - (3n - 1) = n - 4

=> 5n - 3n + 1 = n - 4

=> 5n - 3n - n = - 4 - 1

=> n = -5

Varification:

LHS = 5n - (3n - 1)

= 5×(-5) - (3×(-5) - 1)

= -25 - (-15 - 1)

= -25 - (-16)

= -25 + 16

= -9

RHS = n - 4

= -5 - 4

= -9

Since , LHS = RHS

Hence verified .