9
7x + y = 4y = 4 - 7x
x = 8y = 6(5x8) + (3x6) = 58(5x8) - (3x6) = 22
You should write the question out as z= (y/x). To solve this, you would multiple x to the other side to get y alone. Then you would multiply z to the other side. z= (y/x) Given xz= y x= y/z
y=±√15
y = 2x -1 y = 5x -13 So: 5x -13 = 2x -1 5x -2x = 13 -1 3x = 12 x = 4 and by substituting y = 7
To solve the equation n + 3x6 = 30, first calculate 3x6, which equals 18. Then subtract 18 from both sides of the equation to isolate n. Thus, n = 30 - 18, which simplifies to n = 12.
-y + y equals 0.
For y - 2y - 3y equals 0, y equals 0.
b = y - mx.
y= -2x
y - 3 = 0 y = 3
y=x+4
y = -6
y=5-x
-3
16
y = mx + b