If 3x-2y = 7, then 6-6X + 4Y=

If 3x-2y = 7, then 6-6X + 4Y=

-8

If 3x-9 + 1 / 2Y + 1 = 0, then 1 / 3x-1 / 2Y = Z + 5 / 6, z =?

wolovehudg
∵|3x-9|+|1/2y+1|=0
And | 3x-9 | ≥ 0, | 1 / 2Y + 1 | ≥ 0
∴3x-9=0,1/2y+1=0
The solution is x = 3, y = - 2
∴1/3x-1/2y=z+5/6
(1/3)×3-(1/2)×(-2)=z+5/6
1+1=z+5/6
z=2-5/6
z=7/6
The letter Z = 7 / 6

How to prove the "triangle rule" of vector

Using parallelogram
In parallelogram ABCD, vector AB + vector AC = vector CD + vector AC = vector ad
Thus, the vector triangle in physics is formed

High school vector triangle rule
a. How to determine B, a + B

Drawing into the form of two vectors end to end