Answer:
x = -9/4
Step-by-step explanation:
We have:
(x + 9)/x = -3
(x + 9) = -3x
3x + x + 9 = 0
4x + 9 = 0
4x = -9
Answer: y = 2 x + 3
Find the negative reciprocal of the slope of the original line and use the point-slope formula y − y 1 = m ( x − x 1 ) to find the line perpendicular to
y = − 1 /2 x + 7 .
y = 2 x + 3
X=3 or -6
Step-by-step explanation
Cross multiplication
化成下图所示就可解出
the answer is 708.75
x=35
