5n+4 = -26 5n = -26-4 5n = -30 n = -6
Subtract 20 from each side: n= 6. Job done. You could have done that!
first combine like terms and 5n+7=-41 add -7 to both sides 5n=-48 n=-48/5
8 + 3(6) = 8 + 18 = 26
2 plus n is the true one, but 1 plus n is not?
n = 26
n=-9.6
5n + 7 = -41 5n = -48 n = -48/5 n = -9.6
5n+4 = -26 5n = -26-4 5n = -30 n = -6
n=40 n2+n+41=1681 which is not a prime.
Subtract 20 from each side: n= 6. Job done. You could have done that!
41 - 2n = 2 + n Add 2n to each side: 41 = 2 + 3n Subtract 2 from each side: 39 = 3n Divide each side by 3: 13 = n
first combine like terms and 5n+7=-41 add -7 to both sides 5n=-48 n=-48/5
8 + 3(6) = 8 + 18 = 26
-18
n = 8
2 plus n is the true one, but 1 plus n is not?