-7
The equation 7 x + 14 y + 10 z = 98001 has infinite solutions. For any x and y we can have a z which satisfies this equation. For example, if we choose x=1 and y=1 then z=9798 satisfies. To have a specific solution there must be three equations for three unknowns (x,y,z), which can be solved simultaneously.
6+z = 3 z = 3-6 z = -3
To solve an equation with three unknowns, x, y and z, you require 3 independent equations.
you can not solve this equation
6z-4z-z = 6-7-4 z = -5
Can you help with this equation? Thanks. Solve for x and y and z for the following. x plus y plus z equals 9 x plus 2y plus 3z equals 23 x plus 5y plus -3z equals -7
(7z - 4)(4z - 7) so z = 4/7 or 7/4
5z2-33z-14 = 0 (5z + 2)(z - 7) = 0 {factored into two binomials} 5z + 2 = 0 or z - 7 = 0 {set each factor equal to 0} 5z = -2 or z = 7 {subtracted 2 and added 7, respectively} z = -2/5 or z = 7 {divided left equation by 5}
Without an equality sign and not knowing the plus or minus value of 81 it can't be solved. If you mean: z+81 = 9z-7 Then: z-9z = -7-81 => -8z = -88 By dividing both sides by -8: z = 11
The equation 7 x + 14 y + 10 z = 98001 has infinite solutions. For any x and y we can have a z which satisfies this equation. For example, if we choose x=1 and y=1 then z=9798 satisfies. To have a specific solution there must be three equations for three unknowns (x,y,z), which can be solved simultaneously.
The expression has no solution but it can be simplified to: z+6
6+z = 3 z = 3-6 z = -3
What are we solving here for, Z, X, or Y?If solve for Z then the answer would be z = x + yIf solve for X then the answer would be z = z - yIf solve for Y than the answer would y = z - xHope this help.
7 (seven)
To solve an equation with three unknowns, x, y and z, you require 3 independent equations.
you can not solve this equation
Let me see:1) x + y + z = 7 y = 7 - x- z2) 2x + 3y- z = -23) -x + 3z = 36 x = 3z - 36Subst. 3) into 2):2(3z-36)+3y -z = -2Subst 1) into 3):2(3z-36) +3(7-x-z) - z = -2Subst 3) into 2) again:6z-64 + 3(7-(3z-36) - z) -z = -2z= 67/7Subst answer into 3) -x + 3(67/7) = 36x = -51/7Subst answers into 1):-51/7 + y + 67/7 = 7y = 33/7therefore x = -51/7, y = 33/7, z = 67/7