Mathematics High School

A system of equations is shown below.
y = 2x - 3
y = 5x + 6
What is the value of x + y?
A. -12
B. -9
C. 9
D. 12
Please help me!!!!

A System Of Equations Is Shown Below.y = 2x - 3y = 5x + 6What Is The Value Of X + Y?A. -12B. -9C. 9D.

Answers

Answer 1

Answer:

-12

Step-by-step explanation:

Step1: Add 3 to both sides of the equation

2x -3 = 5x +6

    +3         +3 = 9

Step2: subtract 5x from both sides of the equation

2x = 5x +9

-5    -5

Step3: divide both sides of the equation by the same term

-3x(/ -3) = 9(/-3)    

X=-3

Step4: multiply -3 with 2

-3x2= -6

Step4: subtract -6 with 3

-6 - 3= -9

Y=-9

Step5: add the -9 to -3

-9 + -3 = -12

ANSWER: -12

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