x=-47.6 ================================== Before the supervisor starts to complain about detail, I'll show that man's work: 380 - 9x = x - 96 380 - 10x = -96 - 10x = - 96 - 380 = - 476 X = + 47.6 . Whoops. I got a different answer. Let's check my solution. Substitute it in the original equation: 380 - 9(47.6) ?=? 47.6 - 96 380 - 428.4 ?=? - 48.4 - 48.4 ?=? - 48.4 Yes ! The first contributor's answer above was wrong by its sign. X = + 47.6
If: x+16 = 9x then x = 2
x=-7
9X=4 gives x=4/9
9x+18 = 180 9x = 180-18 9x = 162 x = 18
If x equals 10 and y equals 10, then 9x plus 8y equals 170.
Divide both sides of the equation by x: x2 = 9x x2 / x = 9x / x x = 9
-711
1 x 380, 2 x 190, 4 x 95, 5 x 76, 10 x 38, 19 x 20.
9x+6=51 9x = 45 x= 5 9x-6=51 9x = 57 x= 6.33
9x + 8y = (9 x 6) + (8 x 3) = 54 + 24 = 78
11
-58.75 = 9x x = -58.75/9 = -6.5277...