9x + 9 = 135 9x = 126 x = 14
9x + 2 = 12x + 14 -3x = 12 x = -4
9x=2x+14 subtract 2x from both sides you have 7x = 14 left. divide each side by 7 x=2
y=9x=3it equals ......y= 3.334
x = -2/3,7/6
2y - 9x = 14 2y = 14 + 9x y = (14 + 9x) / 2
9x + 9 = 135 9x = 126 x = 14
9x + 2 = 12x + 14 -3x = 12 x = -4
If: 9x-2y = 14 Then: y = 4.5x-7 in slope intercept form
7x-4=9x+10-14=2xx=-7
9x=2x+14 subtract 2x from both sides you have 7x = 14 left. divide each side by 7 x=2
y=9x=3it equals ......y= 3.334
x = -2/3,7/6
x - x2 - 9x + 14 = 0 ; whence, x2 + 8x = 14 , x2 + 8x + 16 = 30 , and x + 4 = ±√30 . Therefore, x = ±√30 - 4 .
x=-7
Add 4x to each side: 9x + 14 = 10 Subtract 14 from each side: 9x = -4 Divide each side by 9: x = -4/9ths
If x equals 10 and y equals 10, then 9x plus 8y equals 170.