63
2
The expression (9x 7)-(x 3) can be simplified as follows: (9x - 7) - (x - 3) = 9x - 7 - x + 3 = 8x - 4
x=-7
63x/49 = 9x/7
9x - 20 = 7 9x = 27 x = 3
In order to find the slope of your line, we must first get it into y=mx+b.-9x-7y = 8-9x + 9x - 7y = 8- 7y = 9x + 8-7y/7 = 9x/7 + 8/7-y = 9x/7 + 8/7(-1) -y = 9x/7 + 8/7y = -9x/7 - 8/7The slope is -9/7 and the y-intercept is -8/7
2
The expression (9x 7)-(x 3) can be simplified as follows: (9x - 7) - (x - 3) = 9x - 7 - x + 3 = 8x - 4
(9x2 + 7)(9x2 - 7) = 81x4 - 49
x=-7
11 + 9X
63x/49 = 9x/7
9x - 20 = 7 9x = 27 x = 3
X = 7 9x - 2x = 49
X = 7 9x - 2x = 49
If you mean 9x -7 = -115 then the value of x is -12
4x+7=9x+7 -5x=0 x=0