what is the solution? y=x+5 y=-2x-1 a. (0,5) b. (-2,-1) c. (-2,3) d. (0,-1)
Mathematics · High School · Thu Feb 04 2021
Answered on
Given the equation:
y = x + 5
y = -2x - 1
Solve for the solution.
Solution:
In order to solve for the solution, we simply equate the two equations into one single equation.
x + 5 = -2x - 1
Transpose -2x and 5 to the other side of the equation, hence it must be taken to note that in transposing a number, the sign changes.
x + 2x = -1 -5
3x = -6
Divide both sides of the equation by 3 in order to determine the value of x.
3x/3 = -6/3
x = -2
Final answer:
x = -2