Question

700+80+n=780+n please help

Answer 1

700+80 would already equal 780 so if you add 1, (left side would equal 781) (right side 780+1=781) so n=1

Answer 2

The given equation is true for any value of n.

Explanation:

The given equation is

`700+80+n=780+n`

`780+n=780+n`

Taking all the terms on the left sides of the equation.

`780+n-780-n=0`

Combine like terms to solve the above equation.

`(780-780)+(n-n)=0`

`(0)+(0)=0`

`0=0`

LHS=RHS for any value of n.

Therefore the given equation is true for any value of n.