-3n+5n+4 = -4 2n = -4-4 2n = -8 n = -4
3n+12=Answers may vary.
-add 3n to both sides -subtract 2 from both sides -cancel out the both -divide 28 by 7.
-3(n-5)=24 -3n + 15 = 24 -3n= 24-15 -3n = 9 n=9/-3 n=-3
3n and n = 4? 3n ( the four replaces the n 3(4) = 12 =======
-5(3n plus 4) 40 is a set of disjointed expressions: it is not a formula and so cannot be solved.
3n + 2 + (3n + 3 - 3n + 1) = 3n + 2 + (3n + 3 - 3n + 1) = 3n + 2 + (4) = 3n + 6
-3n+5n+4 = -4 2n = -4-4 2n = -8 n = -4
3n+2+3n+2=6n+4
3n+12=Answers may vary.
-add 3n to both sides -subtract 2 from both sides -cancel out the both -divide 28 by 7.
3n+2 + (3n+3 - 3n+1) = 3n+1+1 + (3n+1+2 - 3n+1) = 3*3n+1 + (9*3n+1 - 3n+1)= (3+9-1)*3n+1 = 11*3n+1.
3n -5 = 19 3n = 19+5 3n = 24 n = 8
No. 3n is not a factor of 3n + 7.
-3(n-5)=24 -3n + 15 = 24 -3n= 24-15 -3n = 9 n=9/-3 n=-3
123
3n - 2n = n 3n - 2n = (3 - 2)n = 1n = n