I think thiis might be :
a= [21^3]w simplify
a = 9261w divide both sides by 9261
a/9261 = w
(1/3)^2 = (1/3) * (1/3) = 1/9
3(a²+b)-4(a²-b) =
a^2(3 - 4) + b(3 +4) =
-a^2 + 7b
That "Periodic Taxi" is one of the coolest things I've ever seen......thanks for posting that one, Melody !!!!!
2 x 8 x 52 = 832
8= (12/13)h multiply both sides by 13/12
(13/12)(8/1) = h
13(8/12) = h
13(2/3) = h
26/3 = h
3<-5n+2n simplify
3 < -3n divide both sides by -3, reverse the inequality sign
-1 > n
2c+4≥ - 12c–19–19 simplify
2c + 4 ≥ -12c -38 add 12c to both sides.....subtract 4 from both sides
14c ≥ -42 divide both sides by 14
c ≥ -3
8n-(5n+7)=5
8n - 5n - 7 = 5
3n - 7 = 5 add 7 to both sides
3n = 12 divide both sides by 3
n = 4
9|9-8x|=2x+3 divide both sides by 9
l 9 - 8x l = [2x + 3] / 9 we have two equations
9 - 8x = [2x + 3] / 9 and 9 - 8x = - [2x + 3] / 9
multiply both sides by 9
81 - 72x = 2x + 3 81 - 72x = -2x - 3
get the x's on one side and constants on the other
78 = 74x 84 = 70x
divide by 74 divide by 70
78/74 = x = 39/37 84/70 = x = 6/5
