Sometimes have a solution
S= to (-21) and u find s by adding a # plus 18 but the number has to be negative when the answer is negative and it has to be bigger than 18
Remark
Yes even though 8 is not a prime number. There is nothing that will divide into 3 or 8 the will give a whole number answer when the division is complete.
That means that 3 and 8 are prime to each other in base 10.
Perimeter=2(l+b)
=900=2(l+b)
let width be x
=900=2(70+x+x)
=900=2(70+2x)
=900÷2=70+2x
=450=70+2x
=450-70=2x
=380=2x
=380÷2=×
x=190
so, width = x
=width=190
breadth=190+70
=breadth=260
So you have s=(w-10e)/5
To get rid of the 5, multiply the equation by 5, then to the other side.
So now it is 5s=w-10e
Now subtract w. So its now 5s-w=-10e
Now divide the -10. So now it is e=(5s-w)/-10
And it will not simplify because the s and w have different coefficients.