You do not have enough information to solve this problem.
More accurately, you do not have enough information to assign a numeric value to z. However, abstractly, you could say that z=27-3x-4y.
Here's the work for that problem. -3x+ 8.1= -18.9 -3x=-18.9-8.1 (subtracting 8.1 from both sides, or, moving it to the other side) -3x=-27 x=27
1/3x + 6 = 9 Restating the problem x + 18 = 27 I multiplied by 3 x = 9 I subtracted 18 from 27
x=12
4+3x-27=-12 To solve it... 3x= -12-4+27 3x= 11 x= 11/3 x= 3.666
x = 27
27-9 =18. 18/3 =6
3x+24+2 = 53 3x = 53 -26 3x = 27 x = 9
The value of x is -4
13x+27=3x+32 Reorder 13x-3x=32-27 Simplify 10x=5 Simplify x=5/10 Simplify x=1/2 Answer
no
3x + 6 = 27.Subtract 6 from both sides: 3x = 27 - 6 = 21.Divide both sides by 3: x = 21/3 = 7.x = 7
If 3X-27= 0 then X=9