-86
That equation has no solution. There is no possible number that's equal to 18 more than itself.
a + 18 = 90 is a linear equation in one variable. Adding both sides by -18, we get a + 18 - 18 = 90 - 18 a = 90 - 18 = 72
x = -1 Since -3(-1) + 15 = 18
11x = 20x +1811x-20x=18x(11-20)=18-9x=18x=-2
U can subtract 18 from each side of the equation.
25-7=18 18/3=6
-86
Solve this system of equations. 5x+3y+z=-29 x-3y+2z=23 14x-2y+3z=-18 Write the solution as an ordered triple.
1/9=x/18 18=9x 2=x
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y + y + 2 = 182y + 2 = 182y = 16y = 8whew !
That equation has no solution. There is no possible number that's equal to 18 more than itself.
a + 18 = 90 is a linear equation in one variable. Adding both sides by -18, we get a + 18 - 18 = 90 - 18 a = 90 - 18 = 72
x = -1 Since -3(-1) + 15 = 18
11x = 20x +1811x-20x=18x(11-20)=18-9x=18x=-2
C = -59