21
18+18+18+19+23+23+24+24=167
-23
60.
Negative 23 + 32 minus 18 = negative 9 {-23+32-18=-9)
(-18-23+20)/3= (-21)/3=-7
63 + 20 - 60 = 23
Oh, dude, if 5 plus n equals 23, then n must be 18, right? So, if you wanna find out what n minus 5 equals, just subtract 5 from 18 and you get 13. Easy peasy lemon squeezy.
3x + 5 = 6x + 23 -3x = 18 x = -6
18 + 23 + 23 = 64
26 - 21 = 5 or 24 - 23 = 1
Solve this system of equations. 5x+3y+z=-29 x-3y+2z=23 14x-2y+3z=-18 Write the solution as an ordered triple.
-4x+3 = 23+6x -4x-6x = 23-3 -10x = 20 x = -2