If: 5x+1 = 21 Then: 5x = 21-1 => 5x = 20 Divide both sides by 5 and so x = 4
Solve this system of equations. 5x+3y+z=-29 x-3y+2z=23 14x-2y+3z=-18 Write the solution as an ordered triple.
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It is a linear equation in the variable x. You can solve for x using algebra: -5x + 3 = -22 -5x = -25 -x = -5 x = 5
To solve an equation with three unknowns, x, y and z, you require 3 independent equations.
you cant
23
7
x = -8
3
x = -1.2, y = -3
-5x+50 = 25 -5x = 25-50 -5x = -25 x = 5
x=35
172=x
You find x. Oh! There it is!! ^ See?
5x + 2 = 22 5x = 22 - 2 5x = 20 5x/5 = 20/5 x=4
5x+y=-7 3x+y=15 8=D