5 + n = 23 n = 18 18 - 5 = 13 ■
Solve this system of equations. 5x+3y+z=-29 x-3y+2z=23 14x-2y+3z=-18 Write the solution as an ordered triple.
(1/2) + (2/3) + (3/4) = (6/12) + (8/12) + (9/12) = 23/12= 1 and 11/12
8 plus 15 = 23
24 + 23 + 22 + 21 + 20 + 19 + 18 + 17 + 16 + 15 + 14 + 13 + 12 + 11 + 10 + 9 + 8 + 7 + 6 + 5 + 4 + 3 + 2 + 1 = 300
18+18+18+19+23+23+24+24=167
-23
21
11
12 + 23 + 45 + 67 + 16 + 18 + 45 = 226
Negative 23 + 32 minus 18 = negative 9 {-23+32-18=-9)
12
5 + n = 23 n = 18 18 - 5 = 13 ■
1 1/2 plus 4 2/3 equals 5 3/5.
x = 12
3x + 5 = 6x + 23 -3x = 18 x = -6
3x - 12 = -2x + 235x = 35 so x = 7