The coordinates of the other endpoint are (-8, 18)
Answer:
x = -4
Step-by-step explanation:
Note the equal sign, what you do to one side, you do to the other. Do the opposite of PEMDAS.
PEMDAS =
Parenthesis
Exponents (& Roots)
Multiplication
Division
Addition
Subtraction
First, divide 3 from both sides of the equation:
(3(-3 - 3x))/3 = (27)/3
-3x - 3 = 27/3
-3x - 3 = 9
Next, isolate the variable, x. Note that what you do to one side of the equation, you do to the other. Do the opposite of PEMDAS.
First, add 3 to both sides:
-3x - 3 (+3) = 9 (+3)
-3x = 9 + 3
-3x = 12
Next, divide -3 from both sides:
(-3x)/-3 = (12)/-3
x = 12/-3
x = -4
x = -4 is your answer.
~
3(x+5)=8x~~~First we distribute (we multiply 3 by x and 3 by 5)
3x+15=8x~~~Remove 3x from both sides
-3x -3x
15=5x~~~~Turn this equation around so x is on the other side
5x=15~~~Divide by 5x
÷5x ÷5x
x=3
