X + 19 + 7x + 9 = 180
8x + 28 = 180
8x = 180 - 28
8x = 152
X = 152 : 8
X = 19
QS=5x-2
Because 3x+2x= 5x and -2 stays the same
6.5 is the answer. You can check by 6.5x8=52
First you'll use the slop formula to find the slope.
Slope =

Slope =

Slope =

Slope =

Now we write the equation.
y = mx + b
y = -3x + 9
In this equation -3 is the slope and 9 is the y-intercept.
Hope this helps :)
Answer:
x=-8,8
Step-by-step explanation:

missing either x+8=0
x=-8