Answer:
- 7
Step-by-step explanation:
Solve for x
3x + 3 = - 9 ( subtract 3 from both sides )
3x = - 12 ( divide both sides by 3 )
x = - 4
Hence
3x + 5 = (3 × - 4) + 5 = - 12 + 5 = - 7
Answer:

Step-by-step explanation:
The equation of a line is usually written in the form of y=mx+c, where m is the gradient and c is the y-intercept.
The product of the gradients of perpendicular lines is -1.
Gradient of given line= 3.
(Gradient of line)(3)= -1
3m= -1
m= 
subst. m=
into the equation:

To find the value of c, substitute a coordinate.
When x=0, y=4,

Thus the equation of the line is
.
Answer:
Add each side to get perimeter so your total is 38ft
Step-by-step explanation: